What occurs during a silent trade?

a. money is exchanged

b. items are borrowed and then returned

c. speech is limited to discussions of price and quantity needed

d. goods are bartered without speaking

D.goods are bartered without speaking

Explanation:

Silent trade, also called dumb barter, or depot trade, specialized form of barter in which goods are exchanged without any direct contact between the traders. Generally, one group goes to a customary spot, deposits the goods to be traded, and withdraws, sometimes giving a signal such as a call or a gong stroke.

uncle sam would be tossing and turning in his grave : *)