In Autoregulation of hormone?
Ans. is 'b' i.e., A hormone inhibits its own secretion by inhibiting regulatory hormone.Feedback control (Autoregulation):The process of inhibiting or stimulating the first step by the final step product in a hormonal reaction pathway, is called feedback regulation.
A hormone inhibits its own secretion directly
A hormone inhibits its own secretion by inhibiting regulatory hormone
Nervous system inhibits release of hormone
All of the above