During an examination of a woman, the nurse notices that her left breast is slightly larger than her right breast.Which of these statements is true about this finding?

Asymmetry of breast size and shape is very unusual and means she may have an inflammation or growth.

Asymmetry of the breasts is common, but the nurse should verify that this finding is not new.

Asymmetry of the breast is unusual, and the patient should be referred to a physician.

Asymmetry of breast size and shape is probably due to breastfeeding and is nothing to worry about.