How many years of delay is typical between initial exposure to a carcinogen and appearance of detectable symptoms? 

A)  2 to 5 years 
B)  5 to 10 years 
C)  10 to 40 years 
D)  40 to 50 years

Carcinogen

Any substance or agent that promotes the formation of cancer by altering cellular metabolism or damaging DNA directly in cells.

Exposure

Refers to the condition of being subjected to something (such as environmental conditions, chemicals, or radiation) that can have a direct impact on health, safety, or well-being.

Detectable Symptoms

Observable signs or indications of a disease, disorder, or other condition that can be noticed and identified.