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
True about inspiration; the intrapleural pressure becomes: 
Select and explain. 
A. More - ye, B. More +ve, C. Same, D. Initially positive, then negative
A: More - ye
Answer: A: More - ye 
Explanation: A i.e. More - ve