Plzzz help meee! I am timed!

Which option best completes the diagram? the cold war is the major u.s. foreign policy priority terrorism becomes a major concern of u.s. foreign policy. a. the second iraq war begins. b. the september 11 terrorist attacks occur. c. terrorists attack the 1972 summer olympics. o d. the soviet union collapses.

An effect of the steamboat's popularity was that fewer people traveled by rail. o steam locomotives became less popular. people began to build canals in the united states and europe. o more people began to travel between the united states and europe.

Which best statement best describes the political structure of the ancient aztecs