I think the correct answer would be answer C. social - character vs. character
The cause was that both Saudi Arabia and Egypt asked for help from the US and other Western civilizations, both countries grew fearful from the then recent Iraqi invasion of Kuwait.
The American embargo on sales to Japan was created because Japan was in a war with China and was using our imported goods and oil to create weapons. However, the embargo later led to the bombing of Pearl Harbor and WWII. It made Japan invade China to obtain needed resources.
The answer is:
D. slowed the arms race between the Soviet Union and the United States.
Divided in two rounds of conversations the Strategic Arms Limitations Treaty (SALT) were a couple of treaties that were held between the USA and the URSS to find a way to keep the armmamentary race undercontrol. There were a lot of issues to be discussed, anti-ballistic misiles zones, that stated that only one was allowed by country which meant that the countries would only have this for the capitol, it slowed down the arms race up to the end of the cold war.