If we observe birds, we find the most of the birds often move their neck. It is because

Options

A. their ears are covered and they can fly.
B. the birds have two eyes.
C. their eyes can focus on two different objects at a time
D. in most of the birds, the eyes are fixed and cannot move.

Answer

D

Explanation

If we observe birds, we find the most of the birds often move their neck. It is because in most of the birds, the eyes are fixed and cannot move.