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: Social & Preventive Medicine
The cancerogenic chemical that has a very long latent period is – 
Select and explain. 
A. Benzopyrine, B. Vinyl chloride, C. Asbestos, D. Estrogens
C: Asbestos
Answer: C: Asbestos 
Explanation: None