Concept: This question tests your knowledge of the human brain and the specific functions of its different parts, particularly in maintaining homeostasis.

Why (C) is correct: The hypothalamus is a vital part of the brain located below the thalamus. It acts as the primary control center for many homeostatic functions, including the regulation of body temperature, hunger, thirst, sleep-wake cycles, and endocrine system control. It contains thermoreceptors that monitor blood temperature and initiates responses to maintain a stable internal temperature in homeotherms.

Why other options are wrong:

• (A) Medulla oblongata: Primarily controls vital involuntary functions like breathing, heart rate, and blood pressure.
• (B) Cerebral lobe: Involved in higher-order functions like thought, memory, language, and voluntary movement.
• (D) Cerebellum: Primarily responsible for coordinating voluntary movements, balance, and posture.

NEET Tip: Remember that the hypothalamus is the 'master regulator' for many internal body conditions, making it a frequent topic in NEET questions.

Correct Answer: (C)