Futures are contracts to buy or sell at a specific date in the future at a price specified today.
I believe the answer is: C. He was worried about his border with North Korea being in jeopardy.
Mao zedong feared that if he let the allied forces took control of north korea, the allied forces would be able to establish a navy base on that territory and exposed the chinese mainland from naval attack from north Korea. Because of this, he decided to help the north korean with both millitary soldiers and supplies.
Answer:
(C) The tribal differences that caused the Apache and Navajo peoples to fight each other are not so different from the reasons European countries went to war hundreds of years later.