Which of the following states holds very good relationships with China?

A. Japan
B. India
C. Russia
D. South Korea

Except for Russia, all of the aforementioned states are not holding strong ties with China. India already sees China as a threatening neighbour, Japan has never had very good relations with the country, and even South Korea is witnessing a change in public opinion.

Nevertheless, China and Russia currently enjoy the best relations they have had since the late 1950s. Although they have no formal alliance, the two countries do have an informal agreement to coordinate diplomatic and economic moves and build up an alliance against the United States.