Tony,age 71,married Nichole,age 34

Multiple Choice

Tony,age 71,married Nichole,age 34.They are not using birth control because of Tony's advanced age.You can advise them that

A) Tony probably stopped producing semen around age 70.
B) Tony produces less semen and sperm,which negatively affects fertility,but he can probably still father children.
C) while Tony still produces semen,he probably stopped producing sperm around age 70.
D) Tony cannot maintain a sufficient erection to father a child at his age.