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
The approximate amount of air left in the lungs after maximal forced expiration in a normal woman is 
Select and explain. 
A. 0.5 L, B. 2.0 L, C. 1.1 L, D. 1.8 L
C: 1.1 L
Answer: C: 1.1 L 
Explanation: None