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
Electric pulp testing stimulates: 
Select and explain. 
A. A delta monopolar nerve fibers., B. A delta bi polar nerve fibers., C. Both, D. C fibres
C: Both
Answer: C: Both 
Explanation: In Electric pulp testing both the fibers are stimulated but bipolar are better and more efficient.