Final answer:
The theme that is best reinforced by the excerpt is the theme of solidarity among women.
Step-by-step explanation:
The theme that is best reinforced by the excerpt is the theme of solidarity among women. The conversation between Mrs. Peters and Mrs. Hale highlights the shared experiences and understanding that women have for each other.
The line 'I know how things can be—for women. I tell you, it's queer, Mrs. Peters. We live close together and we live far apart. We all go through the same things—it's all just a different kind of the same thing,' illustrates the idea that women have a unique perspective on each other's struggles and can empathize with one another.
This theme is further reinforced by the fact that the women choose to protect Minnie Foster by concealing evidence from the men, showing their solidarity and understanding of the challenges faced by women in a male-dominated society.