Historians use terms such as A.D, B.C, decade, and century to refer to periods of time. The correct answer is B, periods of time.
Romans accomplished remarkable engineering projects though some were upgrades of other cultures inventions.
Romans introduced innovations to the near East AQUEDUCTS some of which are still standing and which brought drinking water into cities. Romans also built ROADS and many of them are still in use today.
They also built large stone BRIDGES using concrete and iron clamps. CONCRETE increased the constructions’ strength and some bridges are still standing today as the Alcántara.
TUNNELS and ROADS were also important engineering accomplishments from the Romans. Romans are known to have had high MINING TECHNOLOGY, MILLS and WEAPONS.
"<span>C. anger over women gaining the right to vote</span>" was not, in general, a social problem the United States faced at the end of the Civil War, although it was an unrelated concern for many.
Peasant farmers grew food that fed the city.
The largest class in most early civilizations was the peasant class. These people were usually concerned with agriculture, and therefore, grew the food that fed the city. This was a very important task as communities were able to grow and develop only when surplus food was available. As agriculture became more efficient and systematic, this was increasingly easier to achieve.
Sure hope this helps you :)