Answer:
A defective pituitary gland can lead to oversecretion of growth hormones.
Step-by-step explanation:
The pituitary gland is an endocrine gland which produces a variety of hormones in the body like growth hormones, androgens, aldosterone and many others.
If the pituitary gland becomes defective due to many factors, then the pituitary glands can start producing the hormone in high amount.
When the pituitary glands oversecrete the growth hormones, then the growth hormones show drastic effects on the body like large hands and feet, increase in the size of bones and muscles and increase in the height and the condition is known as gigantism.
Thus, the selected option is correct.