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: Anatomy
Oblique facial cleft results due to: 
Select and explain. 
A. Improper fusion between maxillary and Lateral nasal process, B. Improper fusion between maxillary and Medial nasal process, C. Improper fusion between frontonasal and Mandibular process, D. Improper fusion between maxillary and Mandibular process
A: Improper fusion between maxillary and Lateral nasal process
Answer: A: Improper fusion between maxillary and Lateral nasal process 
Explanation: None