Since 1970, what has been a significant economic
trend in the united states?
(1) decline in the number of working mothers in
the labor force
(2) shift in jobs from manufacturing to service
industries
(3) decrease in dependency on foreign oil
(4) increase in federal budget surpluses

The correct answer is number 2. A Shift in jobs from manufacturing to service industries.

Since 1970, a significant economic trend in the United States has been the shift in jobs from manufacturing to service industries.  

The difficult economic situation in the 1970s made President Richard Nixon try to reduce high inflation, few new businesses in the market, considerable unemployment and less than expected government revenues. President Nixon cut some taxes, froze wages, and limited prices. The oil embargo was another crisis he had to sort out. In employment, since the 1970s, a significant economic trend in the United States has been the shift in jobs from manufacturing to service industries, such as the entertainment industry and hospitality industry.  

d) the constitution rights of native americans and their right to self-government on reservations