Answer:
D) It allows the states to experiment with different policies.
Step-by-step explanation:
Federalism is a political doctrine that seeks for a political entity or organization to be formed by organizations (states, associations, groups, unions, etc.) that are associated by delegating some freedoms or powers of their own to another higher body, to whom sovereignty belongs (State federated or federation) and that retain a certain autonomy, since some competences belong exclusively to them. In other words, it is a political system in which the functions of the government are distributed among a group of associated states, first, which then delegate powers to a central federal state. For that reason, this political doctrine allows the states or subordinate entities to experiment with different policies.