The Correct option is B. Manufacturing. During the late 20th century, Manufacturing jobs declined dramatically in the United States.
Automation in US
In the late 20th century, overall economic growth in United States was all time high, with 5% population of the world, the GDP was $8.5 trillion. This led to rise of income and investments.
The prominent sectors which was rising exponentially was communication and service sector. With the rise of Automation sector, the only sector which created less jobs was manufacturing. According to one estimates Industrial jobs in the manufacturing field took a a greater hit in late 20th century.
Therefore, the correct option is B. Manufacturing.
Learn More about Economy of US here:
https://brainly.com/question/1106682
