Correct answer is : A : Cerebrum
Comas are caused by damage to the brain, specifically damage to the cerebral hemisphere that is Cerebrum. This area of the brain controls arousal and awareness. Damage here can result from many potential factors.
Coma is a state of prolonged unconsciousness that can be caused by a variety of problems such as traumatic head injury, stroke, brain tumor, drug or alcohol intoxication, or even an underlying illness, such as diabetes or an infection. Coma is a medical emergency. Swift action is needed to preserve life and brain function.