The answer is C is b/c sun exposure is completely natural unlike the followin answers.
Because humans have five senses: feel, see, taste, hear, and smell. When you step on a nail you basically going to feel it and you brain can sense that and it can trigger nerves which can cause pain.
<span>HIV antibody tests look for these antibodies to HIV in your blood or oral fluid. The soonest an antibody test will detect infection is 3 weeks. Most (approximately 97%), but not all, people will develop detectable antibodies within 3 to 12 weeks (21 to 84 days) of infection</span>
R- Rest (try to stay off of the injury for a few days)
I-Ice (ice the injury multiple times a day, but not directly to the skin).
C-Compress (compress the injured area with a elastic bandage, for example).
E-Elevate (elevate the injury adequately above the heart on a pillow).
hope this helps