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: Surgery
Neonates differ from adults in the following, except 
Select and explain. 
A. Their hepatic metabolizing enzyme activity is faster., B. Their excretory ability of the kidney is less well developed., C. Their gastric emptying is prolonged., D. They can tolerate large doses of ceain drugs on body weight basis.
A: Their hepatic metabolizing enzyme activity is faster.
Answer: A: Their hepatic metabolizing enzyme activity is faster. 
Explanation: The gastric emptying is prolonged and the renal function is low in neonates. The capacity of liver to metabolize drugs is also low. However ceain drugs like digitalis, belladonna can be tolerated in large amounts on a body weight basis than adults.