1- Great Depression- wheat or rice
2- Colonial period- indigo
3- Reconstruction Era- Tobacco
4- Silk- <span>Post-World War II
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Take these answers with a grain of salt. I am doing my best. But it has been a little while since I took that class.
The answer is B) Following proper shutdown processes. This is because all the other answers are ways that your computer can have technical problems but by doing the proper procedures with your computer it will minimize problems with it.
This is kinda hard sense they do produce a lot of major industries in the U.S like natural gas, tourism, etc.But as for the BEST answer I'd say D)