Arrange the given words in the sequence in which they would appear in a standard English dictionary: 1. Globe 2. Group 3. Glitch 4. Gap 5. Glade.

Introduction / Context:
This problem belongs to the topic of dictionary or alphabetical ordering in verbal reasoning. Candidates are given several words and must arrange them in the same order in which they would appear in a standard English dictionary. The task checks understanding of alphabetical comparison letter by letter. Here, we have the words Globe, Group, Glitch, Gap and Glade, each assigned a number, and we must choose the correct numerical sequence that represents the correct dictionary order.

Given Data / Assumptions:
- The words are: 1. Globe, 2. Group, 3. Glitch, 4. Gap, 5. Glade.
- We follow normal English dictionary rules, comparing from the first letter to later letters as needed.
- Upper case and lower case are treated identically for ordering; only letter sequence matters.
- No word is duplicated; all are distinct entries.

Concept / Approach:
To place words in dictionary order, compare them lexicographically. This means that you compare the first letter of each word, and if there is a tie, you move to the next letter, and so on. When one word becomes a complete prefix of another, the shorter word comes first. In this question, all words begin with the same letter G, so we must look at the second and subsequent letters to determine the correct order. Careful comparison step by step gives the required sequence.

Step-by-Step Solution:
Step 1: Note that all words start with G, so compare the second letter of each word: a in Gap and Glade, l in Globe and Glitch, r in Group. Step 2: Among the second letters a, l and r, we know a comes first, then l, then r. So any word starting with Ga will appear before words starting with Gl and Gr. Step 3: Words starting with Ga are Gap (4) and Glade (5). Actually Gap is G-a-p and Glade is G-l-a-d-e? Wait, Glade is G-l-a... The second letter is l, not a, so only Gap begins with Ga. Step 4: Therefore 4 (Gap) is the first word in dictionary order. Step 5: Next consider words beginning with Gl: Globe (1), Group (2 does not start with Gl), Glitch (3), Glade (5). The ones actually starting with Gl are 1, 3 and 5. Step 6: Now compare Glade (G-l-a...), Glitch (G-l-i...) and Globe (G-l-o...). Comparing third letters a, i and o, we have a < i < o, so the order among them is Glade (5), Glitch (3), Globe (1). Step 7: Finally, Group (2) starts with Gr, which comes after all words beginning with Ga and Gl, so Group is last. Step 8: Combining this, the full dictionary order is: Gap (4), Glade (5), Glitch (3), Globe (1), Group (2) which gives the sequence 45312.

Verification / Alternative check:
A quick cross check is to write the words in full and sort mentally by comparing letters from left to right. You can also rewrite them in alphabetical groups: Gap, Glade, Glitch, Globe, Group and verify that this sequence would indeed appear on a dictionary page. Confirm that there is no misplaced pair, especially between Glade, Glitch and Globe where inner letters differ by only one position in the alphabet. Once confirmed, map those words back to their original numbers to obtain 45312.

Why Other Options Are Wrong:
Option A (42351) places Globe before Glade and Group near the middle, which conflicts with the correct alphabetical comparison. Option B (45321) incorrectly places Group before Globe. Option C (43125) mixes the internal ordering of Gap, Glade, Glitch and Globe. Option E (45231) incorrectly arranges Glitch, Globe and Group. Only option D maintains the exact sequence derived from letter by letter comparison.

Common Pitfalls:
Many candidates only look at the first two letters and then guess the remaining order, which leads to mistakes among similar words such as Glade, Glitch and Globe. Another common error is to misread the options and transpose two numbers while transferring the order. To avoid such errors, compare all differing letters, especially where the words share long prefixes, and check carefully before final selection. Writing a small side list in correct order and then encoding it into the numeric pattern also helps reduce confusion.

Final Answer:
The correct dictionary order corresponds to the sequence 45312, which matches option D.