The brain is made up of:

a. 2 cerebri, hemispheres

b. 2 cerebelli hemispheres

c. the brainstem

a. 2 cerebri, hemispheres

Explanation:

The cerebrum is largest part of the brain which is divided into two halves by a deep furrow. The two halves of the cerebrum are the left and right hemispheres. The two cerebral hemispheres are connected by a thick band of nerve fibres called corpus callosum. The right hemisphere associated with creativity while the left hemisphere relates to logical thinking.

The correct answer will be option-A.

Explanation:

The brain is one of the complex and the largest organ of the body composed of neuron cells.

The human brain is made up of three different regions: the hindbrain, forebrain and midbrain. The forebrain is made up of cerebrum which is the largest part of the brain and is divided into two hemispheres: the right hemisphere and the left hemisphere. The right and left hemispheres are connected by the nerve fibres known as corpus callosum where both the hemisphere controls the opposite side of the body.

Thus, option-A is the correct answer.