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 this question is true.
The prefixes are a group of letters or one single letter placed and attached before the root word, and at the same time provides meaning to the complete word. For example "impossible" in this case the prefix would be "im".
Hence, the correct answer is letter <u>c. ex</u>
