Why were american eager for new goods and services

The main reason Americans are eager for new goods and servises is because of economic growth.

Answer d would be the best answer, for he wants to have part in biotechnology. an ekg technician is quite similar.

People need to distract themselves with actitives. they can also find a natural high. an example would be eating alot of meat. that meat can release dopamine to the brain which gives one a natural high feeling.