The incident at kent state in 1970 is an example of students protesting against a) the vietnam war. b) joseph mccarthy. c) integration of schools. d) communists in the united states.

The answer is A. 

There was a significant response to the Kent shootings; hundreds of universities, colleges, and high schools closed throughout the US due to a student strike of about four million students, and the event further affected the public opinion-at an already socially contentious time- over the role of the US in the Vietnam War.

A) Vietnam War. What had happened was a bunch of Kent State students were protesting the war. 29 guardsmen fired 67 rounds in the matter of 13 seconds. killing 4 people and wounding 9. The 9 wounded suffered from permanent paralysis. Hope this helps. ;)