An Older Man's Sperm Is Slightly More Likely to Cause

An older man's sperm is slightly more likely to cause a genetic disease in the fetus because

A) the sperm are very old.
B) they have had longer to be exposed to endocrine disruptors.
C) there have been many rounds of DNA replication.
D) the man has more opportunity to become infected.
E) they are more likely to be damaged.