I believe that the answer is electricity.
I hope this helps :)
Well during the early 1900´s the United States were undergoing The Great Depression which was a hard time for america but with the technological innovations and the business environment starting to flourish it more than likely helped America come out of that time period and become one of the most productive countries that we are today. The strengths of the innovations today are that thery´re really changing and shaping the future of tomorrow and the future of the young people coming up, but the weakness would be that we become in debt with other countries because of the demand for these innovations.
Answer:
I'd say B is the most logical choice out of the four.
Explanation:
The answers are
<u>unemployment in developed nation</u>s ---> more jobs in developing countries
<u>demands on natural resources</u> --> expansion of trade