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When people have asthma, their airways can be overly sensitive to:

a. Exercise
b. Dust
c. cigarette smoke
d. all of the above

User Huxi
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2 Answers

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The answer is d all of the above
User Lavya
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D. All of the above



Due to certain smells and circumstances, asthma can react whilst running, and smelling stuffy smells.
User Ohid
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