Answer:
The sentence that is the BEST conclusion for a story that begins with the introductory sentence "Backpacking is not a luxurious vacation; it can be difficult and uncomfortable" is "Even though it can be hard to do, backpacking can be one of the best ways to get in touch with nature."
Explanation:
The introductory sentence presents backpacking like a difficult experience, but the modal that it has don't make it like an unbearable experience, they the conclusion is the best explanation to something that "can" be hard but is an experience of a lifetime for people and a very good way to get in touch with the planet we live in.
