Part A:
D, It suggests that the speaker is unhappy or troubled.
Part B:
A, He cannot sleep and needs to get out of the house.
Answer:
It makes readers focus on the conclusion and the author's message.
When reading the diary format of a story the writer of the diary is writing from his or her point of view, so you can easily understand how they feel and what they think.
In my opinion I think it's A it could be C but when you see someone around you physically see but you wouldn't call them strangers if you physically resemble and know the person. In answer a it says "emotionally disconnected" which can mean strangers but it can be temporary.
