What events do you think caused voters to lose faith in the political system and the nation’s leaders in the late 1960s and 1970s? Can you think of any events during your lifetime that may have caused voters to lose faith in the political system and nation's leaders?

the Vietnamese war

Explanation:

It did not happen all at once, this radical diminution of trust. Over more than a decade, the accumulated weight of critical reporting about the war, the publication of the Pentagon Papers in 1971, and the declassification of military and intelligence reports tarnished the office.

Nor did the process stop when that last chopper took off. New evidence of hypocrisy has continued to appear, an acidic drip, drip, drip on the image of the presidency. The three men who are most responsible for the war, John F. Kennedy, Lyndon B. Johnson, and Richard Nixon, each made the fateful decision to record their deliberations about it.

The tapes they left behind—some of them still newly public, others long obscured by the sheer volume of the material—are extraordinary. They expose the presidents’ secret motives and fears, at once humanizing the men and deepening the disillusionment with the office they held.

a.   it resulted in widespread unemployment.

answer; (d) i believe that the correct answer is americans finally ran out of ammunition;