At least answer 1 questions please

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

Opinions on victory gardens and their views on the war effort

The formation of business monopolies in the late 1800s was made possible by the (1) effects of laissez-faire policies (2) passage of federal antitrust laws (3) elimination of the free-enterprise system (4) adoption of socialist economic practices