Which hormone is responsible for production of milk in human body?

A. Thyroxin
B. Prolactin 
C. Testosterone
D. Oxytocin

🧠 Explanation:

Prolactin is the hormone responsible for milk production in humans. “Hormone” is a noun; “responsible” is an adjective. Alternatives like “chemical messenger” could be used. Understanding hormones is vital in physiology, biology, and medical sciences.