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
Which of the following conditions does not require any treatment unless it becomes symptomatic 
Select and explain. 
A. Subacute pulpitis, B. Chronic pulpitis, C. Pulp fibrosis, D. Apical cyst
C: Pulp fibrosis
Answer: C: Pulp fibrosis 
Explanation: Pulp fibrosis is a result of senile changes or low grade trauma to the tooth and is usually asymptomatic.it is more evident in the radicular portion of the pulp than elsewhere.
grossman..12th ed pg 34