According to the domino theory, neighboring nations can be vulnerable to the spread of communism because of their

A. political independence

B. cultural similarities

C. totalitarian leaders

D. natural resources

According to the domino theory, neighboring nations can be vulnerable to the spread of communism because of their: B. cultural similarties. By having cultural similarties, the majority of the people in that country will also held a common value (perception of which is right or wrong). And since value will became the most crucial factor of our decision making, it will also be reflected to our political leaning.

Political independence. It alludes to governments that are sovereign - that is, the privilege to practice uninhibitedly the full scope of energy a state has under global law ... At the end of the day, nations that are lawfully ready to settle on their own choices about their residential and outside approaches.