The Knowledge Base Can Be Most Useful in Answering Which

The knowledge base can be most useful in answering which of the following questions?

A) What is the problem or issue are we studying? Why are we studying it? How can we fix the problem or better understand it?
B) When will we need to do something about the nature of this theme? Where do we change things in regard to this issue?
C) What is the statistical test we will need to employ in the testing of our study hypothesis? Why do we need to use this particular statistical test?
D) Where is the best venue for conducting a study of this theme? How can we find this venue?