Use “Biking for Boots” to answer the following question.

Based on events in the story “Biking for Boots,” which sentence
best expresses its theme?
F A month later Shelby and I left from Duluth, Minnesota, on the first leg of our lengthy Lake Superior bicycle tour. (paragraph 8)
G Already we had a list of over a hundred pledges from family and friends. (paragraph 8)
H Yet, throughout the journey, we met many friendly people who cheered us on and kept us motivated. (paragraph 9)
J I knew that despite the challenges, the Forest Animal Shelter was a cause worth biking for, especially if the animals there were all as sweet as Boots! (paragraph 12)

The sentence that best expresses the theme of "Biking for Boots" is J: "I knew that despite the challenges, the Forest Animal Shelter was a cause worth biking for, especially if the animals there were all as sweet as Boots!" This sentence highlights the main idea of the story, which is the importance of supporting animal shelters and the perseverance required to do so.