Question 1 answer: The last option
Question 2 answer: Each change of speaker equals a new paragraph.
The word settled is used correctly in that sentence. If there are more sentences comment them I can help.
Answer:
Pretty Sure it is A
Explanation:
Implicit statements imply something, such as in this case, that Erika is nervous and something is about to happen. In explicit statements, something actually happens. Erika is acting out, so there is no suggesting it, she is simply doing so. Therefore, it is most likely A.