Since the ________, the U.S economy has shifted from manufacturing to a service based economy. Group of answer choices1990's1980's1970's1960's

The shift in the U.S. economy from a manufacturing-based economy to a service-based economy primarily began in the late 20th century, particularly during the 1970s and 1980s. This transition was influenced by several factors, including globalization, technological advancements, and changes in consumer preferences.

During the 1970s, there was a notable decline in manufacturing jobs, as many companies started to outsource production to countries with lower labor costs. This trend accelerated in the 1980s, as advancements in technology made it easier to automate many manufacturing processes, further reducing the need for factory labor in the U.S.

By the 1990s, the service sector had fully emerged as the predominant sector of the economy, with significant growth in industries such as finance, healthcare, and information technology. Thus, while the seeds of this transition were sown in the 1970s, it was during the 1980s that the shift became most pronounced.

Given the options, the most accurate choice for when this transition prominently began would be the 1970's.