General douglas macarthur argued that the korean war a should be extended into a war with china. b was not a vital american interest. c should be extended into a war with the soviet union. d should be limited to korea.

How does cooperative federalism work in the united states? a. state and federal governments have different and overlapping responsibilities b. branches of the federal government can check one another's power. c. when amending the constitution, citizens vote directly. d. bills passing the house of representatives must also pass the senate.