Which best describes korean-chinese relations during the goryeo-khitan war?

1) korea and china had no relations.
2) korea and china had violent relations.
3) korea and china had weak relations.
4) korea and china had secret relations.

Korea and China had violent relations.

i took flvs

the united states has a federal government. the president is the head of the federal government of the united states. however, each state forms its government for administration purposes. the powers of the state governments are exercised within restricted state boundaries. and citizens participate in this government by voting.

imagine me knowing the answer