I believe the answer is A. very cloudy
Answer:
Part A. It needs improvement Part B. “We’re taking every step we can to ensure that you’re getting an educational system that is worthy of your potential.”
Explanation:
i took the test trust me
A. having fresh produce on hand
Both are extremely successful in their respective fields.
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.