Final answer:
The correct answer to the question of which gland releases hormones like oxytocin to maintain homeostasis is the c) Pituitary gland, known as the master gland of the endocrine system.
Step-by-step explanation:
The pituitary gland releases various hormones, such as oxytocin, that maintain homeostasis or equilibrium in the body. Therefore, the correct answer is c) Pituitary gland. Oxytocin is a hormone released by the posterior pituitary that plays a significant role in uterine contractions during childbirth and the let-down reflex in lactation. Additionally, other hormones produced by the pituitary gland regulate the functioning of various endocrine glands in the body, which is why the pituitary gland is often referred to as the 'master gland' of the endocrine system.