I thinks it is C not sure hough
Answer: your body will respond badly and your heart could fail our certain parts of your body will be affected
Explanation:
The answer is : increased resistance need to be added to the muscles.
Muscle conditioning refer to muscle strength and endurance. In order to improve it, you need to put your muscle in a harsher condition in a harsher condition than it used to be, so your muscle could adjust to it. That's why you should keep increasing the resistance
Answer:
Help body to perform daily functions.