How many laminae are present in the grey matter of the spinal cord?

Along with hypothalamus,limbic system is involved in the
$I.$ thermoregulation
$II.$ regulation of sexual behavior
$III.$ expression of emotional reactions (e.g.,excitement,pleasure,rage and fear)
$IV.$ memory
Choose the correct option

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

In the diagram of the lateral view of the human brain,parts are indicated by alphabets. Choose the answer in which these alphabets have been correctly matched with the part which they indicate.

The cavity of the diencephalon is known as:

Corpus callosum is found in the brain of