How Did Changes in Navigation and Multiple-Masted Cargo Ships Impact

Multiple Choice

How did changes in navigation and multiple-masted cargo ships impact trade?

A) Inland oases remained vital as transshipment points for goods to the coasts.
B) Political authorities did not profit as much from maritime trade as they had from caravan trade.
C) Most shipping firms were government owned.
D) Merchants gave up using overland trade routes such as the Silk Road.