HELP ASAP PLEASE why was James Monroe's presidency known as the "Era Of Good Feelings?"

A. ) The united states didn't have any problems with foreign nations.
B. ) a feeling of nationalism and there was only 1 political party the democratic republicans
C. ) The entire nation was happy with the building of the Erie canal
D. ) The federalists and democratic-Republican agreed to work together and not argue.

“[the city’s engineers excelled in areas] neglected by the greeks, such as the construction of roads and aqueducts, and of sewers that could wash the filth of the city into the tiber. they have built paved roads throughout the country, leveling ridges and filling up hollows, so as to make possible the movements of heavily loaded wagons. . and such is the quantity of water brought in by the aqueducts, that veritable rivers flow through the city and its sewers: almost every house has cisterns, waterpipes, and copious fountains.” —strabo, as quoted in empires ascendant: time frame 400 b.c.–a.d. 200 cisterns are tanks that hold water until it is needed; if a house has a cistern, it is likely to also have a. aqueducts. c. a swimming pool. b. a fish pond. d. sinks and faucets.