Because he has no clue of what he’s talking bout
A. The author enjoys the sights and sounds of the swamp. The descriptions gives this one away.
There is no indication that the author lives here, nor is there any mention of tourists. That takes out B and D. And while there is many sentences describing the birds, there is just as much description about other species, so we do not know C to be true. A is the best choice.
The first article is about the promotion of a lady from Seattle to an important position at a private company. The fact that the article begins by the sentence “the news is out!” implies up front that it is an important event for its readers and that apparently this lady is an influential and respected member of the community and that this promotion is beneficial for it and for the lady herself.
The second article is obviously a news report on a police investigation. It starts with the mention of “two witnesses”, implying that they were witnesses to a crime, which is confirmed immediately after the opening line. The crime itself has a name (Grand Forks robbery) which demonstrates that the crime was a serious and had dramatic repercussions for the community where it occurred. Even the police official who is interviewed by the press holds an important rank which further underscores the gravity of the offense.
Theme:
the subject of a talk, a piece of writing, a person's thoughts, or an exhibition; a topic.
Hope this helps!