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
Serial extraction should not be undertaken if there is 
Select and explain. 
A. Crowding, B. Presence of ectopic eruption, C. Deep bite or open bite, D. None of these
C: Deep bite or open bite
Answer: C: Deep bite or open bite 
Explanation: None