31.Read the following paragraph and mark the option to indicate the correct answer to the following question. Exercise is any action that gets you moving. You can run, bike, swim, jump rope, or row a boat. It’s all good for you! There are three kinds of exercise. One is stretching. You may do this in dance, yoga, or at the gym. When you stretch, you keep your muscles bendable. Aerobic exercise makes your heart beat fast. You get this kind of exercise when you walk or run. Your heart beats fast when you swim, too. The last kind of exercise makes your muscles strong. You build strong muscles when you lift weights. When you run fast, you make your muscles strong, too. So go outside and have fun! Question: Which of the following is NOT true, according to the passage? a) Dancing doesn't make your muscles bendable. b) There are three kinds of exercise. c) You can build strong muscles by lifting weights. d) Running is a kind of aerobic exercise. Ko can giai thich ak