Since the cuban revolution, which resulted in the overthrow of general fulgencio batista's authoritarian regime, cuba has had a what?

Communist government

Cuba's current government is a communist regime. The constitution defines it as a Marxist-Leninist socialist state, with the Communist Part of Cuba being the dominant party. Although Fidel Castro controlled the country for much of this period, the current president is Miguel Díaz-Canel.

d - failures.

the only attempted british colony in north america before 1600 was roanoke, virginia, which was a total failure. england claimed several areas, including newfoundland, but made no sustainable attempts to colonize them before 1600.

conformal maps greatly distort _sizes_ of continents in higher latitudes.

the answer is sizes.