What Was the Military-Industrial Complex Eisenhower Warned Americans About Before

What was the military-industrial complex Eisenhower warned Americans about before he left office?

A) A lobby of major industrialists eager to reduce government expenditures on military weaponry
B) A partnership between military leaders and industrialists to raise the rate of inflation
C) An association between the military and defense contractors to spend more money on increasingly powerful weapons systems
D) A collaboration between the military and industry to push the economy toward technology for which most American workers were not trained