Idea that a country should focus on its own problems and avoid international commitments

usually her father was the one that controlled it after the death of the husband

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.