The correct option is "D" since the mercantilism theory was based on the idea that the power of a nation relied on its wealth. This wealth was represented by the colonies which provided the raw material to be sent and manufactured in their home country. Besides, the colonies were markets for these manufactured goods. As a result, Britain passed the Trade Acts or Navigation Acts in 1651. By doing so, the colonies could only trade with their home country, i.e. England.
