Erin is a 55-year-old woman. She reached menopause 7 years ago. Her estrogen levels are low, and she has rapid bone loss. Her doctor identifies that she has a high risk of osteoporosis. Based on the studies conducted by Kemmler et al. (2015), which of the following is the most likely recommendation Erin’s doctor would make to lower her risk of the disease? Multiple Choice using biphosphonates exercising regularly taking progestin medications undergoing hormone replacement therapy (HRT