The answer is C.) Making accurate guesses.
I’m not too sure but probably D
In the excerpt, it is inferred that D. Nora is considering killing herself.
After Krogstad discovers that Nora has committed fraud against him, she realizes he could use that information to blackmail her husband. In this way, he would not lose his job but he would get a higher position. So Nora thinks about suicide as the only way to escape, but Krogstad warns her he will write Torvald a letter telling everything anyways.
You would need to find a credible source that has statistics to show which soap is the most and least effective. Try researching labs that have to do with this topic or pulling data from educational sites. What topic is this essay? Informative? Argumentative? I would need to know the genre to give a more clear answer, and supporting details for your essay can go in your thesis.