Final answer:
An entire breast tumor/mass removal is termed as a mastectomy. It is a surgical procedure used to treat breast cancer. Biopsy is another type of surgical procedure used for diagnosing cancer.
Step-by-step explanation:
The correct answer is A. Mastectomy.
An entire breast tumor/mass removal is termed as a mastectomy. A mastectomy is a surgical procedure in which the entire breast is removed to treat breast cancer. It is usually performed when the tumor is large or if there is a high risk of cancer spread to other parts of the breast.
A biopsy, on the other hand, is the surgical removal of a tissue specimen for analysis in a medical laboratory, usually to diagnose cancer.