The functions of forebrain are
sensation of feeling full, control of voluntary muscles, hearing and sight
The correct option is A.
Explanation of the correct option:
Explanation of the incorrect options:
Option B:
Posture of the body is controlled by the action of the cerebellum.
Option C:
The vasomotor of the medulla controls the blood flow in vessels and not the forebrain.
Option D:
Control of involuntary muscles are manifested by the action of medulla oblongata.
Final answer: The functions of the forebrain are sensation of feeling full, control of voluntary muscles, hearing and sight.