Answer: I am pretty sure that you should pick radio waves.
Explanation: The scientist should use radio waves. I think this because you can use the radio waves to analyze the signals from outer space. This will work much better than anything there, to analyze it the best possible.
The best I could do.
D is the correct answer!!
<span>The primary physician in cases of schizophrenia is the psychiatrist.
hope this helps, Terrakmiller80! :-)</span>
