She has become more confident
I think the answer is d. Not sure if wrong, sorry.
That sentence is complete because it has both a subject and a predicate. It is also and independent clause.
The answer would be c - interjection. Interjections are words or phrases that express emotion. Examples would be wow, awesome, ummm, etc. These are not appropriate for formal writing but used constantly in daily communication.
It's definitely D.
It's for sure not C. And I've never read the full story, but this passage doesn't indicate a depressing mood of foreshadowing danger. And the vocabulary in the writing doesn't impact the story itself.
