Institution: জাতীয় কবি কাজী নজরুল ইসলাম বিশ্ববিদ্যালয় (JKKNIU) Exam: ঙ ইউনিট || জাতীয় কবি কাজী নজরুল ইসলাম বিশ্ববিদ্যালয় || 2012
Topic: Correction (Sentence Correction), Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The correct sentence among the given options is A) "One of my friends is a lawyer," not B) "one of my friends is lawyer." While option A uses the proper structure, B is grammatically incorrect because it lacks the indefinite article "a" before "lawyer."

To clarify, the phrase "one of my friends" indicates that we are talking about a specific individual from a group of friends. In English grammar, singular countable nouns require an article. Therefore, "a lawyer" is necessary to convey that the friend holds the profession of being a lawyer.

Option C) "one of my friends are lawyers" is incorrect because the subject "one" is singular, thus requiring a singular verb "is."

Option D) "one of my friend are lawyers" also fails because "friend" should be plural to match the context, as it refers to a group. Therefore, the correct answer, sentence A, clearly communicates that among a group of friends, one individual works as a lawyer, using proper subject-verb agreement and article usage.