The correct answer is "It uses a specific example as evidence".
Literary evidence is <u>all information used to support a specific statement</u>. In the line given, we don't know exactly what assertion it is supporting. However, <u>we can deduce from the introducing phrase "One of the worst case" that it is presenting a testimonial example to strengthen a bigger theme, using it as evidence</u>. This makes the first option more fitting than the rest.
Hope this helps!
