How should the following sentence be written to show correct punctuation of dialogue?

Come on I urged the sick puppy just eat a little bit
A) “Come on” I urged the sick puppy “just eat a little bit”.
B) “Come on”, I urged the sick puppy, “just eat a little bit”.
C) “Come on”, I urged the sick puppy “just eat a little bit.”
D) “Come on,” I urged the sick puppy, “just eat a little bit.”