Which brain structure in a rabbit is directly related to vision?

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.

The cerebral aqueduct is:

Which part of the brain acts like a defense castle,controls moods,and plays an important role in emotional behavior,such as aggression and remembering fear?

If cranial nerves are $12$ pairs, then spinal nerves are: (in $pairs$)

All of the following are parts of the forebrain,except: