It was Bolsheviks (I am not sure if I remember correctly but it should mean something like "majority" but I am not 100% sure).
To prevent spread of communism after the end of WWll
I am pretty sure the answer that oyu are looking for is D. I hope I am right and that this helps. Good Luck
The confrontation had the most lasting significance was: <span>students may choose Cuba because of proximity to the US and duration
Compared to United States, the taking education in Cuba will be a lot less cheaper and it also took less time.
For example, in Cuba average med-school cost is only around $20,000 and it took only approximately around 5 years, meanwhile in united states, the cost is around $180,000 and it took more than 7 years</span>