Question

what does ponyboy mean when he thinks that cherry and him \saw the same sunset\?
that the world they live in is similar
that they were both secretly in love and would go see the sunset together

Explanation:

In The Outsiders, Ponyboy (a Greaser) and Cherry (a Soc) come from opposing, class-segregated social groups. When Ponyboy reflects that they "saw the same sunset," he realizes that despite their different social statuses, they share common human experiences, emotions, and a connection to the natural world that transcends their group divides. The first option aligns with this thematic meaning, while the second misinterprets the line as a romantic reference, which is not the intended message.

Answer:

That the world they live in is similar