Match the endocrine glands with their hormones and functions correctly.

Which of the following hormones affect carbohydrate metabolism?

The following table summarizes some endocrine glands,their hormones,and their functions in the human body. Identify the correct options for the three blanks $A, B$,and $C$.

Endocrine Gland	Hormone	Function
$A$	Estrogen	Maintenance of secondary sexual characters
Alpha cells of Islets of Langerhans	$B$	Increases blood glucose level
Anterior Pituitary	$C$	Hypersecretion causes gigantism

Which of the following pairs are incorrectly matched?

$(a)$ Pineal gland - Metabolism,mental retardation

$(b)$ Thymus - Myasthenia gravis

$(c)$ Thyroid - Anti-inflammatory reaction

$(d)$ Pancreas - Chronic hyperglycemia

Consider the following statements about insulin:
$I$. Human insulin is made up of $51$ amino acids arranged in two polypeptide chains.
$II$. The two polypeptide chains are interconnected by two disulphide bridges.
$III$. In mammals,including humans,insulin is synthesized as a pro-hormone,which contains an extra stretch called the $C$-peptide.
$IV$. $C$-peptide is not present in the mature insulin.
Which of the statements given above are correct?

Calcium plays a very important role in the formation of bones. Write about the role of endocrine glands and hormones responsible for maintaining calcium homeostasis.