The nurse is teaching a group of women about osteoporosis and exercise. The nurse should emphasize the need for which type of regular activity?

A. Core strengthening. While important for overall health, core strengthening is not as directly effective for osteoporosis prevention as weight-bearing exercise. B. Aerobic exercise. Aerobic exercise is beneficial for cardiovascular health but does not have the same bone-strengthening effect as weight-bearing exercise. C. Weight-bearing exercise. Weight-bearing exercises, such as walking, jogging, and strength training, are essential for maintaining bone density and preventing osteoporosis. D. Muscle stretching and toning. Stretching and toning are important for flexibility and muscle health but do not significantly impact bone density compared to weight-bearing exercises.