How Can Age-Specific Antagonistic Pleiotropy Account for Senescence

How can age-specific antagonistic pleiotropy account for senescence?

A) An allele that confers benefits at a young age might be favored even if it is deleterious at a later age.
B) Mutations that occur early in life are likely to produce more mutations later in life.
C) Early acting mutations are acted on more strongly by selection than late-acting mutations.
D) Alleles that confer benefits early in life also tend to confer benefits later in life.