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
Upper and lower lips are formed from which embryonic processes: 
Select and explain. 
A. Maxillary and mandibular, B. Maxillary and median nasal, C. Maxillary, mandibular, lateral nasal and median nasal, D. Mandibular and median nasal
C: Maxillary, mandibular, lateral nasal and median nasal
Answer: C: Maxillary, mandibular, lateral nasal and median nasal 
Explanation: None