how does the structure of this passage help develop the text’s main idea?

The cause-effect structure emphasizes that the struggle of gifted women resulted from the struggles of gifted men.
The problem-solution structure emphasizes that women should look to men of genius for an example of how to succeed.
The compare-contrast structure emphasizes that the challenges faced by women were greater than those faced by men.
The compare-contrast structure emphasizes that Keats and Flaubert faced different challenges, even though they were both men