The u. s. president became the first to ever visit china, setting off a period of detente.

1. lyndon johnson
2. richard nixon
3. gerald ford
4. jimmy carter

The correct answer is 2. The U.S. president that became the first to ever visit China, setting off a period of detente, was Richard Nixon in 1972.

Explanation:

The visit of President Richard Nixon to the People's Republic of China was an important step to formally normalize relations between the United States and the People's Republic of China. It was the first time that a president of the United States visited the PRC, which at that time considered the United States as one of its most important enemies. Among the American public, the visit became a metaphor for an unexpected or uncharacteristic action of a politician.

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.

what following?

explanation: