Number 4 is the paragraph to answer the questions below

C) Young people are careless and indifferent about how best to avoid catching the virus.

Explanation:

The word "cavalier" which is used is defined as "showing a lack of proper concern." This would relate to the idea that yound people are careless and unconcerned about the virus, which is what the author is trying to claim in the paragraph.

the personification of the word prudence d) it effectively enhances the logos and ethos of the argument.

logos means appeal to the logic or reasoning of the people.

ethos means appeal to the credibility of the argument, that it is worth listening to and acting upon.

the underlined phrase is an example of : understatment