Compare/contrast china and the united states?

During the early 1970s, the United States and the People's Republic of China moved toward establishing better?

• relations mainly because ? 1. China had democratized its government and met United States standards for protecting human rights 2. Both countries wished to counteract the rising industrial strength of Japan 3. the United States needed china as a supplier of vital raw materials 4. both countries were seeking to balance the power of the Soviet Union

• Answer:

  Of the answers given,#4 is best.