Who were the ‘Border Ruffians’? People who wanted to settle the frontier far to the west.
A group of men and women who were against slavery and used any means possible to stop it.
Politicians from Kansas who used violence to get their way.
Hostile men who came from Missouri to Kansas to illegally stuff the ballots.

C

Explanation:

a)scientists

explanation:

the national defense education act had two main goals. the first one was to provide personal that was oriented to defense, including scholars, engineering students and so on. the other goal was to provide financial assistance for the students who would be enrolling at colleges and universities in the 1960s.