Increased metabolic rate due to exercise is helpful because __ . A. the body uses more calories for everyday activities B. toxins are removed from the body more quickly C. blood is better able to fight infection D. people with a lower metabolic rate have a higher risk of cancer

The correct answer is A. the body uses more calories for everyday activities.<br /><br />When you exercise, your metabolic rate increases, meaning your body burns more calories for energy. This increased calorie expenditure can help with weight management and overall health. While exercise has many benefits, including improved immune function and toxin removal, the primary reason an increased metabolic rate is helpful is that the body uses more calories for everyday activities.