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 changes position from standing to lying down position , following occurs 
Select and explain. 
A. Venous return to heart rises rapidly, B. Decrease in blood flow to the lung apex, C. Heart rate increases and settles at a higher level, D. Cerebral blood flow becomes more than that in standing position and settles at a higher level
A: Venous return to heart rises rapidly
Answer: A: Venous return to heart rises rapidly 
Explanation: None