Fact 1: Most carcinogens cause cancer by producing mutations in DNA. Fact 2: Cancer can cause death. Given the two facts above, what can cause death?
Pick from:
[i] carcinogens
[ii] rivalry
[iii] smoking tobacco
[iv] Heavy rains
[v] happiness
[vi] treatment
[vii] Pesticides
[viii] high temperature
Answer:
[i]