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
Wound healing is 
Select and explain. 
A. Impaired in anaemic patients, B. Not impaired by hypoproteinaemia, C. Stimulated by steroids, D. More rapid in young than in old
D: More rapid in young than in old
Answer: D: More rapid in young than in old 
Explanation: None