Answer: The Eiffel tower
Explanation: The Eiffel Tower was supposed to be torn down after 20 years. As mentioned before, the Tower was built with the intent of showing off France's industrial prowess during the World's Fair, but the plan was to tear it down after 20 years.
D. because carnegie produced steel and realized that steel played a major part in this time period.It was used for products such as household products, and eating utensils.
"they lacked the political power to influence the racialistic culture that pervaded the Non-Indian South."
B. because the work in one area and are specialized to do that work.