Which part of the brain converts short-term memory into long-term memory?

If the $Corpus$ $Callosum$ is removed in a mammal,which of the following will be affected?

Column $1$ contains parts of the human brain and Column $2$ contains their functions. Match the columns correctly.

Column $1$	Column $2$
$(a)$ Cerebrum	$(i)$ Controls pituitary gland
$(b)$ Cerebellum	$(ii)$ Controls vision and hearing
$(c)$ Hypothalamus	$(iii)$ Controls heart rate
$(d)$ Midbrain	$(iv)$ Center of intelligence
	$(v)$ Maintains body posture

Statement-$I$: Fibres of the tracts are covered with the myelin sheath,which constitute the outer part of the cerebral hemisphere.
Statement-$II$: The hypothalamus contains a number of centres which control body temperature,urge for eating and drinking. In the light of the above statements,choose the most appropriate answer from the options given below:

$A$ sagittal section of the human brain is shown here. Identify the correct labels from $a-d$.

The number of spinal nerves in humans is (in $pairs$)