Respuesta :
Détente refers to a period of improved relations between the US and the Soviet Union (USSR), which began hesitantly in 1971. So, option A is the correct answer.
What effect had the US, China, and USSR reflected?
A complex combination of ideological, political, and economic reasons drove relations between the Soviet Union (USSR)and the United States (US) over the years, resulting in movements between cautious cooperation and frequently hostile superpower rivalry.
As American relations with China flourished, the Soviets often saw the need to improve relations with China so there were increased tensions between the two nations.
For more information about US-China-USSR relations, refer below
https://brainly.com/question/1025988