How can you use your personal choices to exercise more safely?
A not exercising in high-air pollution areas
B. limiting exercise in hot climates to the early morning and evening
C using exercise equipment as it was designed to be used
D. all of the above
Please select the best answer from the choices provided.
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How is the central idea developed further? (a) the author elaborates on the treatments for allergies in adults and how they work. (b) the author quotes the reactions of experts and the methods used to conduct the study. (c) the author compares the different rates of food allergies shown in children and adults. (d) the author indicates the limitations of the study because of differences in health care.