In order to know why statue was built, we looked at the inscription on the statue.
This question is hard, but most likely it is a concluding sentence (one of the last sentences before a goodbye or sincerely) because we can infer that Jasper summarized the letter before that statement was said.
Personal life or first-person point of view is a characteristic of fictional adaptations of autobiographical works.
An autobiography is a fictional piece of work, which means that the events described in it have to be based on true events, and it is written by the same person whose life is being described in the book. So, its main characteristic is that it describes the personal life of someone who writes it using first-person point of view. The rest of the options can be included in an autobiography but they are not a characteristic of this literary genre.