Choice A rationale:

Performing breast self-exams only if you notice any pain is not an appropriate teaching statement.

Breast self-exams should be performed regularly as a preventive measure, regardless of pain or discomfort.

Detecting breast abnormalities early can lead to better outcomes.

Choice B rationale:

Breast self-exams should not be done once every two years.

Waiting for such a long interval between self-exams can increase the chances of missing early signs of breast abnormalities, including cancer.

Regular monthly breast self-exams are recommended for early detection.

Choice C rationale:

"It's best to perform breast self-exams right after your menstrual period" is the correct teaching statement.

This advice is appropriate because breast tissue is often less tender and lumpy immediately after menstruation.

Performing self-exams at this time can make it easier to detect changes in breast tissue.

However, women who have gone through menopause can choose a specific day of the month for self-exams.

Choice D rationale:

Breast self-exams are not unnecessary if you have no family history of breast cancer.

Every woman should perform regular breast self-exams regardless of family history.

Breast cancer can occur in individuals without a family history of the disease, and early detection through self-exams is crucial for all women.