The conclusion,"Mutation hypothesis notes that mutations causing premature senescence are selected against weakly," makes more sense if we consider that ________.

A) many mutations that cause cell death are, in fact, highly deleterious
B) individuals carrying a mutation causing death before reproductive maturity would have a lifetime reproductive success rate of zero
C) mutations causing death after reproduction has begun are selected against less strongly
D) mutations in individual cells may cause cell death, but this does not affect the rest of the organism