A nurse is preparing a program on osteoporosis for a local women's group. Which of the findings does the nurse recognize as a modifiable risk factor?

A. Vitamin D deficiency is a modifiable risk factor because it can be addressed through dietary changes, supplements, and increased sun exposure. B. A small-boned, thin frame is considered a nonmodifiable risk factor as it is a genetic characteristic that cannot be changed. C. A personal history of fractures is also a nonmodifiable risk factor, as past fractures indicate an increased risk for future fractures and cannot be altered. D. Age is a nonmodifiable risk factor, as it is an intrinsic characteristic that cannot be changed