Institution: Directorate of Primary Education - DPE Exam: Primary Exam Question Solution 24-05-2019
Topic: Degree of Comparison, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The correct answer to the question "Rajshahi is …. sugar growing areas in Bangladesh." is option C) "one of the largest." This choice is grammatically and contextually appropriate for several reasons.

Firstly, the phrase "one of the" is a quantifying expression that requires a superlative adjective to denote a ranking within a group. In this context, Rajshahi is being compared to other sugar-growing areas in Bangladesh, suggesting that it ranks among the most significant or extensive regions for sugar cultivation.

Option A, "one of the larger," while it might seem plausible, does not convey the intended magnitude of Rajshahi's status among sugar-growing areas. It implies a comparison but lacks the necessary strength of superlative degree to indicate that Rajshahi is not just "larger" but among the top.

Option B, "one of largest," is incorrect due to the missing article "the." It should read "one of the largest" to be grammatically correct.

Option D, ". largest," fails as it eliminates the necessary comparative phrasing altogether and does not properly connect to the context of the sentence.

In summary, "one of the largest" accurately emphasizes Rajshahi's significance and prominence in sugar production in Bangladesh, making it the correct choice.