The correct answer is: "remained Communist".
Cuba has been a socialist state governed by the unique Communist Party since the sucess of the revolution leaded by Fidel Castro in 1959, which managed to remove the dictatorship of Fulgencio Batista.
After the collapse of the USSR (1991), Cuba lost its most powerful ally, that had helped them to survive after the trade embargo and the international sanctions that the US had set on Cuba. Therefore, the country experienced very severe economic consequences at this moment but this did not change the government or the economic system.
Bonus option: most profit
Answer:
Group learning
Explanation:
When you study with others, not only will you learn the concept, but anyone else that is studying with you will learn too.
This is a good idea, as it will improve test score.
~theLocoCoco