Answer:
I dont get the question.Can you explain more?
D. by replacing Douglas MacArthur during the Korean War.
Answer: Gibbons v. Ogden, (1824), U.S. Supreme Court case establishing the principle that states cannot, by legislative enactment, interfere with the power of Congress to regulate commerce.
Labor unions can use the power of collective bargaining to negotiate, meaning that they will use numbers to assert their power to strike. Collective bargaining is like a compromise both the employees and employer to address certain issues like the employees' wages, benefits, etc.
The answer would be letter C.