Answer: Communist
Step-by-step explanation:
China, Cuba, and North Korea all have one thing in common, and that they are ruled by a communist party. However, apart from that the three really have nothing else in common. North Korea is very isolationist and has a barely functioning economy, Cuba is autocratic and its economy is also poor, the only outlier here is China which is prospering due to its semi-Capitalistic economic policies. The question could definitely be worded better in my opinion.