I would say a because he ran too much but that would be just me I think he hurt his knee from running too much more exercise but probably just aggravate his condition I could be wrong but this is what I think
Answer: your answer is A. The quality of air and water at places where people live,work, and go to school.
Explanation: environment is a where people live together.
Yes, you can put RX glasses in any type of frame
People on tinder is single! you can go there!
The layer that encloses and protects the heart is
Pericardium