Which phrase describes arkansas post?

a.)biggest trading center on the gulf coast
b.)highest outpost in the ozark mountains
c.)first european settlement in arkansas
d.)most productive hunting village in new france

How did inca develop their road system? a) they used mortar to hold the stones together. b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks. d) they laid roads in the cities, not in the less densely populated deserts.