What analogy would circle is to center as target is to bullseye be ?

Question

It’s an analogy based questio 

Answer 1

Possible relative position?

Perhaps one a part of the other.

Here particularly the concept of a "center."

Answer 2

Try to think about the objects. A circle is the whole, and the center is part of the whole object. Likewise, a target is a whole, and the bullseye is part of that whole object.

Take the analogy and replace circle, center, target, and bullseye with the appropriate terms: part or whole. This will give you the name of the analogy (__________ to __________).