A 42-year-old woman with no personal or family history of breast cancer presents for preventive care. She has no symptoms and is at average risk. Which screening strategy is recommended?ABegin biennial screening mammography now and continue through age 74BStart annual screening mammography now and continue lifelongCDefer mammography until age 50DOrder screening breast MRI now and every 2 yearsERely on clinical breast exam alone until age 50Check my answer