1. Would be third-person.
No we, I, us, etc.
A) Expression of humility to Congress
Its usually written as the first sentence of the paragraph (although its not necessary but preferred) It basically includes the main idea or the topic of the paragraph (doesn't have to be word for word), and states the main points of the paragraph briefly.
Answer: It gives Sofia time to think about how she feels about her sister.
Explanation: She knew the fog would burn off as the sun rose, and then she would be able to find her way home, but for now she would have to wait. It gave her time to think.