Which best describes what occurred during the détente era? arms reduction arms limitation alliance formation increased openness

The one that best describes what occurred during the détente era is arms limitation.

Détente (a French word meaning release from tension) is the name given to a period of improved relations between the United States and the Soviet Union that began tentatively in 1971 and took decisive form when President Richard M. Nixon visited the secretary-general of the Soviet Communist party, Leonid I. Brezhnev, in Moscow, May 1972.