What Is the Primary Difference Between Strategies and Tactics

What is the primary difference between strategies and tactics?

A) Strategies focus solely on politics, while tactics embrace society as well.
B) Whereas strategies can be either inside or outside, tactics can only be inside.
C) Strategies are overall goals, and tactics are the means used to accomplish those goals.
D) Strategies are available to any movement, whereas only interest groups can employ tactics.
E) Strategies are employed by flexible pragmatists, whereas tactics are used by rigid ideological groups.