Which of the following statements about infertility in women and men is TRUE?

A) Women's fertility begins to decline in the late 20s.
B) Obesity is not related to fertility for males or females.
C) Male infertility is less frequent than female infertility.
D) The least common cause of infertility in women is the blockage of the fallopian tubes.

Fallopian Tubes

Tubes that connect the ovaries to the uterus in the female reproductive system, where fertilization of the egg by the sperm usually occurs.

Infertility

Inability to conceive a child after 12 months of sexual intercourse without the use of birth control.

Obesity

A medical condition characterized by excess body fat that presents a risk to health, typically measured by BMI (body mass index).