Answer:
The correct option is: b. Hypothalamus
Step-by-step explanation:
Hypothalamus is a small structure present below the thalamus of the brain. It is part of the central nervous system, which contains several nuclei having diverse functions.
It is responsible for producing and secreting neurohormones that stimulates or inhibits the secretion of the pituitary hormones.
The hypothalamus is the primary location of sensory receptors and the thermostat of the body. It is responsible for monitoring the internal body temperature and serum osmolarity.