Answer: Aqueducts
Explanation: They were first developed around 312 B.C., these engineering marvels used gravity to transport water along with the stone, lead and concrete pipelines and into city centers. Aqueducts liberated Roman cities from reliance on nearby water supplies and proved priceless in promoting public health and sanitation.
The President (aka Executive Branch) is responsible for implementing legislation and executive orders. The US Constitution gives the president this power, as Article Two outlines the expectations and rights of the executive branch. This power given to the president can be checked by other branches of the federal government though, as the Supreme Court has the power of judicial review. This means the Supreme Court can rule acts of legislation or executive orders as unconstitutional.
I know that it is C. South Carolina
