When studying, or the history of history, it’s important to realize that every historian presents ideas in a different way. that’s because they have that affect how they think and what they believe. however, good historians use a variety of to make sure their arguments are based on facts and sound evidence

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.

d is the answer. leo should include the source.

i don't think it's c or d. i think it's either a or b.

hope this .