Which of the following hormones play a role in the release of milk from mammary glands?

Correct answer: (d) Oxytocin

Explanation

Oxytocin, released by the posterior pituitary, makes the muscle-like cells around the milk glands contract, so it causes the release (ejection) of milk during breastfeeding. It also contracts the uterus during childbirth.

Milk production is controlled by prolactin.