What Is the Relationship Between Power and Authority

What is the relationship between power and authority?

A) Power and authority do not always come together,but where there is authority there is always power.
B) Power and authority do not always come together,but where there is power,there is authority.
C) Power and authority do not necessarily come together;each can exist without the other.
D) Power and authority always come together in human society;it is essential for the survival of the human species.
E) Power and authority never come together in any society;they co-exist and balance the social order.