Hello. You forgot to mention that this question is about the article 9/11/2001 By Mike Kubic.
In addition, to answer that question, you need to know what the question in Part A refers to.
You didn't say anything about the part A question, but this question asked what was the closest meaning that the word "haunt" in paragraph 20 could express. In that article and paragraph, that word takes on the meaning of "a place where a specific group of people used to stay"
Answer:
A: proved to have deep roots"
Step-by-step explanation:
The word "haunt" was used to show how terrorist groups are huddled in the Middle East, due to the whole campaign against terrorist attacks that was established in the USA. However, this huddle reveals how these groups have strong roots. This is because even in the face of a campaign to combat terrorism, these groups still exist, together in the same region.