Which appositive phrase is punctuated correctly?

Question

Shakespeare, the great writer penned many famous sonnets.

Shakespeare the great writer, penned many famous sonnets.

Shakespeare the great writer penned many famous sonnets.

Shakespeare, the great writer, penned many famous sonnets.

C?

Answer 1

No. Study this:
http://grammar.ccc.commnet.edu/grammar/phrases.htm#appositive

Answer 2

I meant D not c. @writeacher

Answer 3

Yes, D.