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: Pathology
Genes responsible for cleft lip and palate: 
Select and explain. 
A. MSX-1, B. TGF-3, C. FGFR-1, D. All of the above.
D: All of the above.
Answer: D: All of the above. 
Explanation: None