How did the manhattan project help to end the war?

As Kathy Keith at Los Alamos National Laboratory wrote, "In 1943 Manhattan Project leaders J. Robert Oppenheimer and General Leslie R. Groves scoured the country looking for anyone that would help achieve their goal: to end World War II by building a “gadget” that exploited the newly discovered phenomenon of nuclear fission.

Explanation:

i also think it is c

the quote by walter cronkite contributes to the central idea of the text by supporting the central idea. cronkite argues that what is deemed “right” for and in america may not be good for other countries. this supports the central idea of the text, that the vietnam war was unpopular in america for multiple reasons- including cronkite’s.