In 1950,Nicaragua and Brazil Had Roughly the Same Size Economies

In 1950,Nicaragua and Brazil had roughly the same size economies.Now,Brazil's economy is almost five times as large as Nicaragua's.This is most likely because

A) Brazil had almost no trade with other countries.
B) Nicaragua had higher taxes and government spending.
C) Brazil had better resources and technology.
D) Nicaragua had many more government regulations.
E) Brazil had no public school system and used private schools instead.