Q Based on this case study and other information from Chapter 5, answer the following questions. 1. What finding especially suggests that Ms. Bennett’s tumor is benign? 2. Why might Ms. Malcolm’s doctor recommend biopsy of the axillary lymph nodes?3. Why would the mitotic index be relevant to a diagnosis of breast cancer?4. Tamoxifen blocks estrogen receptors so that estrogen cannot bind to them. How could tamoxifen help in the treatment of certain forms of breast cancer?5. Considering that X rays are known to induce mutations and that mutations can cause cancer, why are women in their 40s and beyond advised to have routine mammograms.