Franklin's plan provided that a president be appointed by the crown and a grand council of delegates would be chosen by colonial assemblies. This union would control matters of common interest such as defense, Indian relations, and trade. However the plan was rejected by the colonies, because nobody wanted to surrender that much power to a central authority. The British didn't enforce it because it encroached on their respective powers, which means, the british didn't want to enforce that and lose any power. So the answer is letter D.
