II. Reading Comprehension:
       Now that summer is almost here, it is time to remind everyone about the perils of the summer sun. One doesn't have tobe a doctor to realize that intense exposure to the sun's rays or to its heat can have serious health consequences.
      Perhaps the most obvious summertime affliction is sunburn. The sun gives off very powerful radiation, but we do notimmediately feel its effects. Over time, the skin can begin to overheat and turn red. Worse still, as the skin is injured inthis manner, it loses its ability to cool the body. Normally, we lose internal heat by sweating, a process in which ourbody fluids evaporate throughout skin. When damaged by the sun's rays, however, the skin cannot release excess heat.This heat can cause muscle cramps, a drop in blood pressure producing lightheadedness, and nausea. Burnt skin and asick feeling are the inevitable results of "soaking up rays" in the attempt to produce a darker, healthier-looking skincolor.            Fortunately, dealing with sun- and heat-related illnesses takes no more than common sense. Never stand out in the sununnecessarily; keep in the shade instead. Drink plenty of water, sports drink, or fruit juice on hot, humid days. Avoidcoffee, tea, and alcoholic drinks. Wear a hat and apply sunscreen on all exposed areas of the skin. Never exercise in themid-day sun. These tips can reduce the danger that the sun poses during the hotter, more humid summertime.
1. The best title for this passage is
(A) How to Avoid Sunburn in Summer.
(B) Skin: Your Best Organ.
(C) Sun-tanning Made Easy.
(D) How to Treat Burnt Skin.