Ausländische Arbeitnehmerinnen und Arbeitnehmer, die in den 50er und 60er Jahren von der Bundesrepublik Deutschland angeworben wurden, nannte man …

Why this is the correct answer

West Germany actively recruited foreign laborers in the 1950s and 1960s to fuel its booming economy, calling them Gastarbeiter, meaning guest workers. Although many were expected to return home after a few years, a large number stayed permanently and became an important part of German society.