Question

why does infertility become more of an issue as women age? multiple choice the quality of their eggs decreases. sperm moves more slowly through the vagina. they have irregular menstrual cycles. there is lack of movement in the egg.

Explanation:

Infertility in aging women is primarily linked to declining egg quality. Women are born with a fixed number of eggs, which accumulate genetic damage over time, reducing fertilization success and increasing miscarriage risk. Irregular cycles (a later symptom) or sperm movement (unrelated to female age) are not the core cause. Egg movement is not a key factor here.

Answer:

The quality of their eggs decreases.