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
When a person lies down : 
Select and explain. 
A. There is immediate increase in venous return, B. Heart rate becomes stable at slightly more than normal, C. Cerebral blood flow increases & becomes stable at more than normal, D. Blood flow to the Apex of lung decreases
A: There is immediate increase in venous return
Answer: A: There is immediate increase in venous return 
Explanation: None