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: Medicine
Hyperpigmentation is seen with 
Select and explain. 
A. FSH, B. LH, C. ACTH, D. TSH
C: ACTH
Answer: C: ACTH 
Explanation: Ref image - Davidson's medicine 23e p672