Mercantilism greatly helped the Europeans by constantly bringing in more money and new resources. Great Britain relied very much on the American colonists for a lot of trade. They even passed laws like the Navigation Acts and the Acts of Trade so the British made sure they got they needed from the American colonies and nobody else. Very popular items like tobacco, indigo, furs, sugar, etc, were things the colonists could <em>only </em>send to Britain because of rules.
D because he/she can't change the majority opinion by making a new law or making a letter to the president etc... she can only write why she/he does not agree with the majority.