Some risk factors for cancer are?
a. inherited traits b. lifestyle choices
c. environmental factors
d. All of the Above

I could be wrong, so I'm not sure , but I think d is the answer

I'm gonna go for all of the above.

Explanation:

When someone in your family has cancer, it is a high possibility you can inherit that too.

Lifestyle choices, Smoking causes cancers of the lung, esophagus, larynx, mouth, throat, kidney, bladder, liver, pancreas, stomach, cervix, colon, and rectum, as well as acute amyloid leukemia (1–3).

Natural occurring exposures (ultraviolet light, radon gas, infectious agents) can cause risk of cancer.

b) the heart is a pump made of muscle and that is difficult to grow in the lab.

answer a scar develops;