What made president nixon's trip to red china so significant?

the united states and red china were at war at the time.
it was the first time an american president had visited china.
the two nations reached an agreement on nuclear weapons.
mao zedong and richard nixon had always been bitter enemies.

The correct answer is It was the first time an American president had visited China.

Explanation: This visit made them had a better relationship, especially after all the tensions in the Cold War. This could bring better agreements and possible a good relationship between the countries.

a, both were musicians during the jazz age