This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
ACTH secretion is inhibited by 
Select and explain. 
A. Aldosterone, B. Epinephrine, C. Glucocoicoids, D. CRH
C: Glucocoicoids
Answer: C: Glucocoicoids 
Explanation: Glucocoicoids inhibit ACTH secretion by a direct negative feedback mechanism. They also inhibit CRH secretion. Ref: Guyton and Hall 13th edition Pgno: 977