How did trade along the Silk Road contribute to employment? Traders hired more craftspeople to build vehicles for caravans.
Businesses hired more people to make enough goods to trade.
Governments hired more workers to collect taxes from traders.
Caravans hired more soldiers to protect traders during the journey.

businesses hired more people to make enough goods to trade.

Explanation: I just got it right :)

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

silk

indigo  

rice

all the other answers are wrong