Cancers may be either inherited or they may be induced by environmental factors such as carcinogens and radiation. select the statement that explains how diverse factors such as hereditary events and environmental agents can both cause cancer.
1. environmental agents cause cancer only in individuals with inherited mutations.
2. cell division is inhibited by both hereditary and environmental factors.
3. hereditary and environmental factors involve mutations that affect the cell cycle.
4. environmental factors induce mutations only in genes that regulate the cell cycle.
5. both hereditary and environmental factors decrease the rate of mutations.