In some instances, Federal officials expedited the naming process by furnishing the names themselves, and invariably the name would be the same as that of the freedman’s most recent master. But these appear to have been exceptional cases; the ex-slaves themselves usually took the initiative—like the Virginia mother who changed the name of her son from Jeff Davis, which was how the master had known him, to Thomas Grant, which seemed to suggest the freedom she was now exercising. Whatever names the freed slaves adopted, whether that of a previous master, a national leader, an occupational skill, a place of residence, or a color, they were most often making that decision themselves. That was what mattered.
The idea that a country or region should specialise in making and exporting goods and services that it can produce most efficiently.
The American attitude shifted in favor of rights for Native Americans. This is based on "Polls showed that Americans believed in rights for Native Americans". Why it's not B is because it wasn't the polling that contributed to the act, but what the polls showed which is C.
Aqueduct is that canal. I'd choose none of the above as the aqueducts was firstly built in ancient Rome. But there's no such option. So the closest option is the first one A.Greeks
