Arrange the following words in correct dictionary order and then select the option that shows their sequence: 1. RESIGN 2. REPAIR 3. RESIDUE 4. RESEARCH 5. RESCUE.

Introduction / Context:
This verbal reasoning question checks your understanding of dictionary order, also called alphabetical order. You are given several words and must decide the order in which they would appear in a standard English dictionary. Correctly arranging the words requires comparing letters from left to right and applying the same rules a dictionary uses for sorting words. Here, you are given the words RESIGN, REPAIR, RESIDUE, RESEARCH, and RESCUE and must choose the correct index sequence from the options.

Given Data / Assumptions:

• Words with indices: 1. RESIGN, 2. REPAIR, 3. RESIDUE, 4. RESEARCH, 5. RESCUE.
• All words begin with RE, so comparison will depend on subsequent letters.
• We assume standard English dictionary rules: compare letters in each position from left to right using the usual alphabetical order.
• The answer options present possible sequences of indices only, not the words themselves.

Concept / Approach:
To arrange words alphabetically, compare them character by character starting from the first letter. When letters at one position are equal, move to the next position until a difference appears. The word with the earlier letter in the alphabet comes first. If one word ends while the other continues, the shorter one appears first. Because all the words begin with RE, we will pay special attention to the third and later letters to determine the correct order among REPAIR, RESEARCH, RESCUE, RESIDUE, and RESIGN.

Step-by-Step Solution:
Step 1: Compare REPAIR with the other words. It starts with REP, whereas the others start with RES. Since P comes before S in the alphabet, REPAIR comes first.Step 2: Now arrange the remaining words starting with RES: RESCUE, RESEARCH, RESIDUE, RESIGN.Step 3: Compare RESCUE (RESC...) and RESEARCH (RESE...). The fourth letters are C and E. Since C comes before E, RESCUE is earlier than RESEARCH.Step 4: For RESEARCH, RESIDUE, and RESIGN, compare after RES. We have RESEARCH (RESE...), RESIDUE (RESI...), and RESIGN (RESI...). E comes before I, so RESEARCH comes before both RESIDUE and RESIGN.Step 5: Compare RESIDUE and RESIGN. Both share RESI. Next letters are D in RESIDUE and G in RESIGN. Since D comes before G, RESIDUE comes before RESIGN.Step 6: Final dictionary order is: REPAIR (2), RESCUE (5), RESEARCH (4), RESIDUE (3), RESIGN (1). So the required sequence of indices is 2 5 4 3 1.

Verification / Alternative check:
A quick verification is to write the words vertically and look down each column of letters. Once you see where letters differ, you can order them rapidly. Because all words share the prefix RE, checking the next letters P and S quickly shows that REPAIR is first. Grouping the remaining RES words and then checking the fourth letter (C, E, I, I) immediately gives the intermediate order. A final close look at RESIDUE and RESIGN confirms that RESIDUE precedes RESIGN. This double check supports the same sequence 2 5 4 3 1.

Why Other Options Are Wrong:
Option 4 5 3 1 2 is incorrect because it places RESEARCH and RESCUE ahead of REPAIR, which contradicts alphabetical order.Option 2 5 4 1 3 is incorrect because it puts RESIGN before RESIDUE, even though D comes before G.Option 5 4 3 1 2 is incorrect because it places RESCUE and RESEARCH ahead of REPAIR and also misorders other words.

Common Pitfalls:
Candidates often focus only on the first few letters and overlook subtle ordering differences later in the word. Another frequent mistake is not noticing that P comes before S, leading to misplacement of REPAIR. Similarly, learners may mix up the order of words starting with RESI, such as RESIDUE and RESIGN, by not comparing the next letters accurately. Writing the words down carefully and comparing one letter at a time is the best way to avoid these mistakes.

Final Answer:
The correct dictionary sequence of the given words corresponds to the index order 2 5 4 3 1.