The difference between East Egg and West Egg is that East Egg is largely populated by those from "old money," while West Egg is populated by those with "new money." Tom and Daisy Buchanan are from old money because their families have been wealthy for generations.
I would agree with you - the conclusion should leave readers with an important thought at the end.
This thought should never be new, or opposing to the previous ideas you had been writing before. It also shouldn't be confusing, but quite conversely - it should explain everything and put everything in place.
Sentence 3 supports the main idea of the passage the least because it doesn’t even mention anything about the women in their family, it definitely talks about women and their active ness in politics, but it doesn’t have anything to do with the women in their family whereas all the other sentences do.
Hope this helps!
Objective and respectful because she is trying to sway there opinions and her audience is a executive board so they will appreciate factual information.
