The ability to make others do things is referred to as
a. power
b. authority
c. compliance
d. vision

The answer is b. Authority. Power is too broad in this case. Compliance means the willingness to follow someone else's orders, therefore not the definition in the question. Vision is vision literally or vision to look into the future.

Power and Authority is what we are left with. They fit the definition best.

Now, power is the ability to do something, while authority is the power to make someone do something. 

So our - B. Authority