To give citizens direct input to the government
I think is B,,,,,,,,,,,,,,,
"Supporters of terrorism" is the one among the following choices given in the question that is the "ruthless enemy" in the quote. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that has actually come to your desired help.
Answer:
Stanley L. Miller and Harold C. Urey