I believe A would be the best way to keep the original meaning while making it simple to understand.
I would say the correct answer is that has an undetermined answer.If a subject has been thoroughly covered, then there is no need for this researcher to do it all over again. If it's impossible to answer, there is no need to try. If it can be answered easily, then it doesn't really require a research. This leaves us with the last option, because a researcher might want to try and determine the answer.
so what Iducky22 is pretty much saying is d would be the answer for e2020
Answer:
Sample Response: Because people did not know that yellow fever was caused by the bite of an infected mosquito, they assumed incorrectly that people could catch the disease through touch. To help control the disease, letters were cleaned with vinegar before being sent. This did not work, because it was a false cause-and-effect relationship.
Explanation:
The lady who visits Dante in Canto II is called Beatrice. She was Dante's greatest love while she was alive. She died and went to heaven, but she still loves him and learns about the situation that Dante is going through. For this reason, she decides to help him using Virgil to mediate the interaction between the two, since she transfers to Virgil all the advice and guidelines that Dante will need to get through the moment he is in. Beatrice knows that Dante still loves her and that he will hear her message through Virgil.
Beatrice symbolizes divine love, one that is pure and that goes beyond physical and spiritual barriers.