Answer:
The Romans constructed aqueducts throughout their Republic and later Empire, to bring water from outside sources into cities and towns. ... Aqueducts moved water through gravity alone, along a slight overall downward gradient within conduits of stone, brick, or concrete; the steeper the gradient, the faster the flow.
Option b. neoclassicism-virtue of the common hero
This is a newly rediscovered Greco-Roman ideals that draw inspiration from the "classical" art and culture of ancient Greece or ancient Rome. The main Neoclassical movement happened with the 18th century Age of Enlightenment and continued in the early 19th century, competing with Romanticism. In architecture, the style continued throughout 19th century, 20th century and to the 21st century.
