A lion does not eat grass, however hungry he may be.

Options

A. Grass is not eaten by a lion, however hungry he may be.
B. Grass is not being eaten by a lion, however hungry he may be.
C. Grass is eaten not by a lion, however hungry he may be.
D. Grass is being not eaten by a lion, however hungry he may be.

Answer

A

Explanation

Grass is not eaten by a lion, however hungry he may be. (Passive)
The sentence is in Simple Present Tense. (Active)