Which is the largest division of the brain, divided into lobes?

• A. Cerebrum
• B. Brain Stem
• C. Diencephalon
• D. Cerebellum

Answer: (A)

The cerebrum is the largest division of the brain and is divided into lobes. It sits over the rest of the brain and contains the cerebral cortex, which handles higher-level functions like thoughts, perception, voluntary movement, and interpretation of sensory information. The lobes—frontal, parietal, temporal, and occipital (with the insular region also recognized)—each specialize in different processing tasks, which is why the cerebrum is described as the largest, most complex part of the brain. The brain stem lies below and controls basic life-support functions, the diencephalon includes structures like the thalamus and hypothalamus, and the cerebellum coordinates balance and movement. So, the cerebrum is the correct choice because it is the largest brain division and is structurally organized into lobes.