PLEASE HELP Which cause and effect relationship is correctly matched?

Communists rule North Korea—China and the Soviet Union back North Korea

Fidel Castro assumes power in Cuba—the U. S. backs the Castro regime

The mujahedeen rise in Afghanistan—the Soviets back the mujahedeen

The Sandinistas take power in Nicaragua—the U. S. backs the Sandinistas

a. Communists rule North Korean-China and the Soviet Union back North Korea

Explanation:

Some countries were capitalists during the time siding with America as the main country others were influenced by The Soviets, like North Korean-China, and became under a rule of communists.

b) brahmans   is nomadic society

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali