Fact 1: Some viruses can cause cancer.

Fact 2: Cervical cancer is caused by a virus, the human papaloma virus.

Given the two facts above, answer the question "What is responsible for cervical cancer?" with the following options: 
- lmestone
 - Hemoglobin
 - alleles
 - A virus
 - chemicals
 - cigarettes
 - ovaries
 - smoking


 

    A virus     