The answer should be Both A and C
Reading clears the mind making it ready for sleep and post-exercise drops the body temperature making it want to sleep
The left side of your heart pumps oxygenated blood to your body.
The right side pumps blood to the lungs to receive the oxygen and it goes out of the left side to distribute it throughout the body.
Hope this helps! If you have any questions, just ask!
Do you have options to choose from?