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
Incisal guidance can be made flatter by 
Select and explain. 
A. Increasing vertical overlap and increasing horizontal overlap, B. Increasing vertical overlap and decreasing horizontal overlap, C. Decreasing vertical overlap and increasing horizontal overlap, D. Decreasing vertical overlap and decreasing horizontal overlap
C: Decreasing vertical overlap and increasing horizontal overlap
Answer: C: Decreasing vertical overlap and increasing horizontal overlap 
Explanation: None