The correct options are
A MRI scan
B Tissue Biopsy
Physicians use many tests to diagnose cancer and find out if the cancer has spread or metastasized to other parts of the body beyond the breast. Some tests may also help the physician decide which treatments may be the most effective. For most types of cancer, a biopsy is the only way to make a definitive diagnosis of cancer. A biopsy is the removal of a small amount of tissue or cells for examination under a microscope. A breast MRI may be used after a woman has been diagnosed with cancer to check the other breast for cancer or to find out how much the disease has grown throughout the breast.