It would be 40001 BC-35000 BC in the paleolithic period of the Stone Age.
The noteworthy about the work of Daniel Burnham, Louis Sullivan, and Frederick Law Olmstead is they constructed high rises in urban areas on both coasts. They all took a shot at structures for the 1893 Chicago World's Fair, which presented numerous advancements.
I believe the answer is B, Virginia
It was "d. the commerce clause" that particularly alarmed Antifederalists, since this gave the federal government power to regulate trade not only with other nations but between the states.
