In an unfinished but highly suggestive series of essays, the late Sara

1. For the main idea or the primary purpose, focus on the following:

(i) The first and the last sentences of the first para and if there are many paras , may be the beginning of the second para.

"In an unfinished but highly suggestive series of essays, the late Sarah Eisenstein has focused attention on the evolution of working women’s values from the turn of the century to the First World War."
....
"Eisenstein insists that as a group working-class women were not able to come to collective consciousness of their situation until they began entering the labor force, because domestic work tended to isolate them from one another."

(ii) The first and the last sentences of the last para

"Unfortunately, Eisenstein’s unfinished study does not develop these ideas in sufficient depth or detail, offering tantalizing hints rather than an exhaustive analysis."
...
"While raising important questions, Eisenstein’s essays do not provide definitive answer, and it remains for others to take up the challenges they offer."

Choice B is the closest because we can see that what is being done is an evaluation of an approach. Others don't fit.

2. The relevant part for this question is:

"Eisenstein argues that turn-of-the-century women neither wholly accepted nor rejected what she calls the dominant “ideology of domesticity,” but rather took this and other available ideologies—feminism, socialism, trade unionism—and modified or adapted them in light of their own experiences and needs. "

D best fits the above.

3. The relevant parts for this question are:

(i) The start

"In an unfinished but highly suggestive series of essays, the late Sarah Eisenstein has focused attention on the evolution of working women’s values from the turn of the century to the First World War."

(ii) Any shift from what is being presented

"Eisenstein to some extent challenges the recent, controversial proposal by Leslie Tentler that for women the work experience only served to reinforce the attractiveness of the dominant ideology. "

(iii) The end

"Most importantly, her work aims to demonstrate that "

Choice C best describes the organization

4. The relevant parts for this question are:

"Unfortunately, Eisenstein’s unfinished study does not develop these ideas in sufficient depth or detail, offering tantalizing hints rather than an exhaustive analysis"

"She uses the speeches and writings of reformers and labor organizers, who she acknowledges were far from representative, as the voice of the typical woman worker."

Choice B would best address the inadequacies mentioned by the author.