The absence of a uniform tariff rate benefited British exports to America.
Perhaps most importantly, the Mongol empire inextricably linked Europe and Asia and ushered in an era of frequent and extended contacts between East and West. And once the Mongols had achieved relative stability and order in their newly acquired domains, they neither discouraged nor impeded relations with foreigners.
actually the answer is B .. agriculture was popular in both the north and the south
B. This is because William bolted and secured his machinery and then waited for everyone to arrive.