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
Followings are the symptoms of carcinoid symptoms  a) Wheezing  b) Flushing  c) Cyanosis  d) Clubbing  e) Diarrhoea 
Select and explain. 
A. abe, B. ab, C. ac, D. bc
A: abe
Answer: A: abe 
Explanation: None