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: Medicine
Smoking predisposes to carcinoma of  a) Bladder  b) Ovary  c) Buccal mucosa  d) Breast  e) Stomach 
Select and explain. 
A. ace, B. acd, C. abd, D. ac
A: ace
Answer: A: ace 
Explanation: None