Why did the united states support panama’s revolt and independence from colombia?

a. to prevent british and french expansion in the region .

b. to justify the sailing of u. s warships in the caribbean sea.

c. to establish a u. s. colony in central america.

d. to build a canal linking and the atlantic and the pacific.

Two of these describe "federalism." (choose two answers) select one or more: a. the national government absolutely controls all state governments. b. power is shared by the national and state governments. c. state governments exercise absolute power over the national government. d. it is a compromise meant to eliminate the disadvantages of a "unitary" and a "confederate" system.