The correct answer is:
A. Aqueducts
The Romans used science and mathematics to build aqueducts to make it easier to access water and improve sanitation. The Romans constructed aqueducts throughout their Republic and later Empire, to bring water from outside sources into cities and towns. Aqueduct water supplied public baths, latrines, fountains, and private households; it also supported mining operations, milling, farms, and gardens.
