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.
C is the answer because, if you look back at the questions, the Lords Proprietor wanted to rule all of the colonies. So they tried to create a ruling elite.
Becouse they had different beliefs as from Andrew
The answer is the Gulf of Tonkin Resolution. i hope this helped <3
