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
Pulpal pain response is 
Select and explain. 
A. dull and throbbing when carried by myelinated C fibers., B. dull and throbbing when carried by unmyelinated C fibers., C. quick and sharp when carried by myelinated C libers., D. quick and sharp when carried by unmyelinated C fibers.
B: dull and throbbing when carried by unmyelinated C fibers.
Answer: B: dull and throbbing when carried by unmyelinated C fibers. 
Explanation: None