What I would do is explore the city I live in more and go to a carnival and watch the sunset while on a ferris wheel. I would also realize how good to feel to be around people, but also how it truly feels being alone even if its for only 24 hours.
Answer:
How his time with grandparents changed his thoughts
It would be the first sentence. chronological means from first to last and the first one would be the only one that makes sense.