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: Dental
A patient is involved in chronic mouth breathing, the clinical examination of the patient reveals 
Select and explain. 
A. Convex profile, long face, narrow arches, B. Concave profile, Long face, broad arches, C. Convex profile, short face, broad arches, D. Concave profile, short face, narrow arches
A: Convex profile, long face, narrow arches
Answer: A: Convex profile, long face, narrow arches 
Explanation: None