The incas constructed paved roads, massive walls, and mountaintop buildings out of closely fitted

a)brick

b)stone

c)adobe

d)bronze

assuming that by westerners you mean americans. that they were mean and controlling and abusive to its peasants.

explanation:

on this day in 1913, henry ford installs the first moving assembly line for the mass production of an entire automobile. his innovation reduced the time it took to build a car from more than 12 hours to two hours and 30 minutes.