Ultra Violet rays or UV's cause the skin to burn in the sun.
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.
Yelling at everyone in site
throwing stuff
..etc.
Answer: to be able to achieve long term goals you must have shirt term goals to track the progress.
Explanation: you track the progress by using some form of daily and monthly data
