Answer:
<em>to inform parents about childhood asthma; the style is formal.</em>
Explanation:
<em>In the second sentence, the author mentions "</em><em>If your child</em><em>" which tells us this is directed to the parents. The author is informing the parents about what to do if your child has asthma.</em>
The answer to your question is C. a, a, a, a, b, c, c, c, b. I hope this helps!
Change Passive Voice to Active Voice
Active voice is used when the subject performs the action stated by the verb. For example: Tom changed the flat tire.
Passive voice is used when the subject is acted upon by the verb. For example: The tire was changed by Tom.