Its main purpose is to restore partial flow of oxygenated blood to the brain and heart. ♥
I believe the answer is: C. A healthy high school wrestler is using anabolic steroids to build muscle mass.
It is indeed true that anabolic steroid would increase both the strength and the speed for the athletes. But in the long run, those athletes would face various side effects, such as baldness, decreasing size of testicles, impotency , or in some cases it might lead to stroke.
B. As a cross country runner its very important to warm up before I run a marathon or a long distance run or just any run in general its always something I have to do. If your do the strenuous activity without warming up your muscles will be tight and will sort of go into shock. By warming up you are releasing tension in your muscles and ligaments and getting you blood flowing. In my experience I didn't warmup once before a half marathon and had to stop about a mile in because I tore my hamstring. It strained it right off the bat and kept getting worse just because I forgot to stretch! I hope this helps!
I imagine it would be nursing and residential care facilities
I thinks it is C not sure hough