Here are the answers to your questions:
Question 1: “Detente” is a word that means “___.”
C relaxation
Question 2: Which decade is MOST associated with the detente era?
C 1970s
Question 3: Improved relations between the United States and ___ caused the Soviet Union to improve diplomatic relations with the U.S.
B China
Question 4: Which of these resulted in an actual slow down or limiting of the U.S. and Soviet nuclear arsenals?
D SALT I