Arrange the following words in the order in which they occur in an English dictionary and select the correct sequence of roman numerals. i. Yielded ii. Yelp iii. Yeast iv. Yogurt

Introduction / Context:
This question checks basic competence in arranging words by dictionary order, especially when all words share the same initial letter combination. The terms Yeast, Yelp, Yielded, and Yogurt all begin with Y and many start with Ye, which forces us to carefully compare subsequent letters. Such questions reward a systematic letter by letter comparison and penalise guessing based on word familiarity alone.

Given Data / Assumptions:

• Words with roman numerals:
  • i. Yielded
  • ii. Yelp
  • iii. Yeast
  • iv. Yogurt
• Standard English alphabetical ordering applies.
• Dictionary order is determined by comparing each letter from left to right.

Concept / Approach:
All words start with Y, so we compare from the second letter onward. For words starting with the same second letter, such as Ye, we then examine the third, fourth, and subsequent letters until we find a difference. Once we have ordered the Ye words, we then compare them with words starting Yo, because E comes before O in the alphabet. This structured comparison ensures that we do not rely on intuitive sound or length, but on the strict dictionary rule.

Step-by-Step Solution:
Step 1: Write the words clearly: Yielded, Yelp, Yeast, Yogurt. Step 2: Compare initial letters. Yeast, Yelp, and Yielded all start with Y E, while Yogurt starts with Y O. Since E comes before O, all Ye words must come before Yogurt. Step 3: Among the Ye words, compare the third letters: Yeast (Y E A), Yelp (Y E L), Yielded (Y I E). A comes before L, and both come before I, so the order among these three is Yeast, Yelp, Yielded. Step 4: Finally, add Yogurt at the end because Y O follows all Y E combinations. Therefore, the complete dictionary order is Yeast (iii), Yelp (ii), Yielded (i), Yogurt (iv) which is expressed as iii, ii, i, iv.

Verification / Alternative check:
We can quickly verify by listing the words and mentally scanning the alphabet: under Y, all words starting YE appear before any word starting YO. Within YE, we look at the third letters A, L, and I and note the order A, I, L or A, L, I depending on the spelling, but when fully checked, Yeast, Yelp, and Yielded fall into the correct sequence Yeast, Yelp, Yielded. Appending Yogurt at the end confirms that the roman numeral order iii, ii, i, iv is consistent and correct.

Why Other Options Are Wrong:
Option A (ii, iii, iv, i) starts with Yelp, ignoring the fact that Yeast with early A should precede it. Option C (iv, i, ii, iii) places Yogurt first, which is incorrect because words starting with YO come after words starting with YE. Option D (i, ii, iii, iv) begins with Yielded even though the third letter I comes after both A and L in Yeast and Yelp. Option E (iii, i, ii, iv) misplaces Yielded and Yelp by putting Yielded before Yelp even though I comes after L in the alphabet. Hence, only iii, ii, i, iv follows correct dictionary rules.

Common Pitfalls:
Candidates often rely on how frequently they hear or use a word in daily life, which does not always match dictionary order. Another pitfall is ignoring the third or fourth letters once the first two letters match. Whenever words share a long prefix, it is essential to go further along the spelling until there is a clear difference and then apply alphabetical order precisely at that position.

Final Answer:
The correct dictionary order is Yeast, Yelp, Yielded, Yogurt which corresponds to the roman numeral sequence iii, ii, i, iv.