I think it's the last one or the third one.
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.
B. It should be there instead of they're isn't any room for a car in my garage.
Anabell Lee by Edgar Allen Poe
Success is counted sweetest by Emily Dickinson
"Knowledge is power" is a famous proverb which states that a person with knowledge can outwit physical strength of any other person.