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: Physiology
Stroke output of each ventricle in normal adult is: 
Select and explain. 
A. 30 ml, B. 130 ml, C. 70 ml, D. 5 liters
C: 70 ml
Answer: C: 70 ml 
Explanation: None