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
The normal spleen weighs about: 
Select and explain. 
A. 150 g, B. 250 g, C. 350 g, D. 450 g
A: 150 g
Answer: A: 150 g 
Explanation: The normal spleen weighs approximately 150g(and decreases its size with age. Ref: Harisson, Edition - 18, Page - 468