It piear peopie 30. Which kind of sunscreen is considered safe by the FDA? A. Chemical sunscreen with active ingredients. B. Mineral sunscreen in powder form. C. All categories of sunscreen. D. Mineral sunscreen except that in powder form. 31. What can you infer from the last two paragraphs? A. FDA found that a person wearing sunscreen can only absorb little chemicals. B. All scientists don't consider active ingredients in sunscreen is at no risk. C. Systemic exposure for active ingredients in sunscreens is safe. D. A participant wearing sunscreen can't get sunburnt.