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
Inheritance of cleft lip and palate is 
Select and explain. 
A. Monogenic, B. Polygenic, C. Multifactorial, D. Sex linked
C: Multifactorial
Answer: C: Multifactorial 
Explanation: None