Which of the following is $NOT$ a function of the Cerebrospinal Fluid $(CSF)$?

Given below are two statements:
Statement $I$: Limbic system is responsible for motivational drives and memory.
Statement $II$: Reticular activating system of diencephalon transmits all sensory impulse to the cerebrum.
In light of the above statements,select the correct answer from the options given below.

Ramus communicans contains . . . . . . nerve fibres.

Assertion : The brain stem contains centres for controlling activities.
Reason : Brain stem is very sensitive.

Which of the following communicates with the central canal of the spinal cord?

Match column $I$ with column $II$ and select the correct option.

Column $I$	Column $II$
$i$. Frontal lobe	$a$. Gustatory receptors
$ii$. Parietal lobe	$b$. Olfactory receptors
$iii$. Temporal lobe	$c$. Sense of vision
$iv$. Occipital lobe	$d$. Broca's area