Answer:
They help Participants by telling them to read right here
Explanation:
The Communists in the State Department speech was given on February 9th 1950
He doesn’t look like a Jew. He has red hair.
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.
