; Abundant labor supply<span>; Railroads; </span>Labor<span> saving </span>technological<span> advances
are some answers
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The answer is "A", "They benefited from the trade networks".
A trade network is an arrangement of individuals in various terrains who exchange products forward and backward. Trade includes the exchange of merchandise or administrations starting with one individual or element then onto the next, regularly in return for cash. A framework or system that permits trade is known as a market. An early type of trade, barter, saw the immediate trade of merchandise and enterprises for different products and ventures.
If a society decides to produce housing,for example,should it be the kind of housing that is wanted by ow-income workers, middle-income professional people, or the very rich?