Moctezuma i's armies patrolled the trade routes of the aztec empire and kept them safe. what effect did this have on the empire? a. it ensured peaceful relations between the aztec military and civilians of the empire. b. it decreased the wealth of the empire by discouraging traders from using aztec trade routes. c. it increased aztec wealth by allowing merchants to freely travel across the empire. d. it brought moctezuma i large amounts of revenue in the form of high taxes on traders.