A central idea of a text is the author's overall idea that is presented throughout the text that is thoroughly supported.
Fought for girls education
It was a good day for ice cream.
Because it is punctuated, has a subject and the meaning is the clearest out of those three.
The first and last sentences are not complete.
The passage best shows how the conflict in the story is resolved (as it kind of has that feeling). Therefore, the passage is from the resolution.
