It benefited the elderly people after retirement.
Answer:
it's showed that the men were brave and also knew what people and the government needed to survive
B. Mills no longer had to sit by flowing rivers and use water for power.
D. Ships did not have to depend on wind.
E. Machines could work at rates faster than human power ever allowed.
The end of WWII introduced the baby boomer generation. This happened all over the world, but mainly in the West. The elevated birthrate in the US added about 50 million babies by the end of the 1950s. Hope this was it.