Answers:
1.
The topic here is the statistical improvement of women's position in the work force. The author's tone is familiar, and the passage is addressed to a friendly audience. (A) would be more neutral in tone. (B) would also be more factual, and less conversational. (C) and (E) would have to be both more factual and more formal.
2.
The main idea here is that women are improving their statistical presence in the workforce, but have to be wary of changes in the status of occupational categories as their presence grows. The passage concludes with a wish for a breakdown of the data by age, which the author believes would show younger women making greater advances than older women-but that data isn't here. The end of the paragraph 1 states that secretaries and bank tellers were both "more highly regarded" in the past, implying that these occupations were both male dominated and better routes to advancement than they are now that they're dominated by women, so (A) and (B) are not the exceptions.
Paragraph 2 states that women are about to be the majority in bartending, which is "more encouraging" that the increase of the percentage of women in law; so (D) is supported by the passage. The passage as a whole indicates that advances are recent, supporting (E).
3.
The author states that, as women move into an occupational category "a ghettoization takes place" —in other words, the occupation loses prestige.