This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Most common presenting feature of adult hypopituitarism is 
Select and explain. 
A. Hypothyroidism, B. Hypogonadism, C. Addison’s disease, D. Hyperprolactinemia
B: Hypogonadism
Answer: B: Hypogonadism 
Explanation: In adults decreased pituitary function is first shown by hypogonadism.