Which sentence has correct capitalization?

James Anderson, md, is a doctor from Madison, WI.
James Anderson, MD, is a doctor from Madison, wi.
James Anderson, md, is a doctor from Madison, wi.
James Anderson, MD, is a doctor from Madison, WI.

Question

Which sentence has correct capitalization?

    James Anderson, md, is a doctor from Madison, WI.  
    James Anderson, MD, is a doctor from Madison, wi.   
    James Anderson, md, is a doctor from Madison, wi. 
    James Anderson, MD, is a doctor from Madison, WI.

logan13 · Answer

@texaschic101

zyi6 · Answer

I would say D this time. I am 99.99% sure.