Which of the following is TRUE about protein and supplements in diets? A. Everyone needs additional protein in their diet. B. Weight lifters need to include supplements in their diets. C. It is uncertain whether many dietary supplements are effective. D. Most supplements are known to enhance the benefits of weight training. Please select the best answer from the choices provided. A B C D

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.