Economists said that they have a chemical plant that they can affect their self control
<h2><u><em>Answer:</em></u></h2><h2><u><em>THE ANSWEEER IS CCCCCCCCCC</em></u></h2><h2><u><em>Explanation:</em></u></h2><h2><u><em>I TOOK THE TEST LIKE 2 MIN AGO </em></u></h2>
Answer:
C. It is impossible to verify an experimental result without a control group.
South Korea is a democratic country - option d. (the potentially hostile neighbor is North Korea, which is both totalitarian and communist/socialist; but South Korea is not any of those).