✔ Correct Answer: C. He’s one of the tallest boys in the class.
The correct answer to the question “Choose the grammatically correct sentence: A) He’s one of the tallest boy of the class. B) He’s one of tallest boys of the class. C) He’s one of the tallest boys in the class. D) He’s tallest boy of the class.” is He’s one of the tallest boys in the class.. This question belongs to Grammar Concepts & Terms in English. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.