Directions : In the following questions, a sentence/ part of the sentence is printed in bold. Below are given alternatives to the bold sentence / part of the sentence, which may improve the sentence. Choose the correct alternative. In case no improvement is needed, you answer is No improvemnet.
The others shook their heads and made vague notes of approval.

Options

A. hung
B. turned around
C. No Improvement
D. nodded

Answer

D

Explanation

Nod : to move your head. If you nod your head, you move your head up and down to show agreement. Here, nodded is the right usage.