This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pituitary and Hypothalamus, Subject name: Medicine
Hyperpigmentation is seen with which hormone? 
Select and explain. 
A. FSH, B. LH, C. TSH, D. ACTH
D: ACTH
Answer: D: ACTH 
Explanation: Ans. (d) ACTHRef: Harrison 19th ed. / 401e-4