The fourth cranial nerve of man is

Assertion $(A) :-$ Pons is wrapped by cerebrum.
Reason $(R) :-$ Pons is a major coordinating centre of sensory and motor signaling.

The cerebrum wraps around a structure called $......,$ which is a major coordinating centre for sensory and motor signaling.

Given below are two statements with respect to the limbic system.
Statement $I$: The limbic system is responsible for emotional reactions and memory.
Statement $II$: It is formed mainly of the cerebrum,pons varolii,and cerebellum.
Choose the most appropriate answer from the options given below.

$A$ sagittal section of the human brain is shown here. Identify at least two labels from $A-D$.

In rabbits,optic lobes are small because the eyesight is controlled by: