In which scandal was lt. colonel oliver north implicated?

a.) grenada

b.) iran-contra affair

c.) mujahadeen

d.) solidarity movement

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.