Answer: 8
Explanation: Just took it today and was right
The answer is c. It is c because after you do strenuous exercise you are in recovery so it is recovery heart rate.
It is true, since there really is no way to explain it, look at the picture below.
https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwjbm6jyusLeAhVC2VMKHTHUCnEQjRx6BAgBEAU&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FMyPlate&psig=AOvVaw1MJ9CiEdM-NRdRHxX4N2qV&ust=1541686191832175
I do believe it is false because you should cross-train. I could be wrong!
Thanking audience
collecting paper