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: Surgery
Surgery on the hard palate of a 3 years old cleft patient may inhibit growth, causing the facial profile to become: 
Select and explain. 
A. Straight, B. Elongated, C. Shortened, D. More concave
D: More concave
Answer: D: More concave 
Explanation: None