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 statement among the following is - 
Select and explain. 
A. Bladder emptying cannot occur if volume < 100 ml., B. Bladder muscles contains intrafusal fibres, C. Pressure increase in blader very linerly with time, D. One time of fluid, intake :results in complete excretion in 1 hour
A: Bladder emptying cannot occur if volume < 100 ml.
Answer: A: Bladder emptying cannot occur if volume < 100 ml. 
Explanation: A i.e., Bladder emptying cannot occur if volume is First urge to void is felt at a bladder volume of - 150 m1Q, and a marked sense of fullness at about 400 m1Q. In adult the volume of urine that normally initiates a reflex contraction is about 300- 400 m1Q.