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
A 46-year-old chronic alcohilic complains of infeility. What is the cause of testicular atropy ? 
Select and explain. 
A. Liver dysfunction, B. Thrombosis of testicular vessels, C. Vitamin B12 deficiency, D. Peripheral neuropathy
A: Liver dysfunction
Answer: A: Liver dysfunction 
Explanation: Liver dysfunction causes increased estrogen and decreased testosterone leading to testicular atropy.