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
Most characteristic feature of mandibulofacial dysostosis is 
Select and explain. 
A. Normal hearing, B. Normal vision with coloboma, C. Mandibular prognathism, D. Vertical maxillary excess
B: Normal vision with coloboma
Answer: B: Normal vision with coloboma 
Explanation: None