The same paragraph is repeated four times below. Choose the one that correctly uses periods, exclamation marks, and question marks where needed.


A. Walking is good exercise. It keeps you physically fit and it enables you to notice new things. How long has it been since you noticed something fascinating in nature. You miss so much every day. Does it really take that much effort? Try it and see for yourself. You'll be amazed as you being to notice some startling facts about our world.


B. Walking is good exercise. It keeps you physically fit and it enables you to notice new things. How long has it been since you noticed something fascinating in nature? You miss so much every day! Does it really take that much effort! Try it and see for yourself. You'll be amazed as you begin to notice some startling facts about our world.


C. Walking is good exercise! It keeps you physically fit and it enables you to notice new things! How long has it been since you noticed something fascinating in nature. You miss so much every day. Does it really take that much effort. Try it and see for yourself! You'll be amazed as you begin to notice some startling facts about our world.


D. Walking is good exercise. It keeps you physically fit and it enables you to notice new things. How long has it been since you noticed something fascinating in nature? You miss so much every day! Does it really take that much effort? Try it and see for yourself. You'll be amazed as you begin to notice some startling facts about our world.