I have a poll for you!

I am working on my Mini Margaret Bag and I am at the point where I am ready for a button, only I cant decide. So hopefully you can help me out. Here are some photos of my margaret in progress, I have put a strip of the inside fabric over the purse so that you can see it, but my question is Which Button do I choose? (there is a poll at the bottom of this post, thanks in advance for playing)

A.

B.

C.

D.

Here is a view of all the buttons together

And here is the poll!!