Which sentence correctly punctuates an appositive?

a.
john and jorge, the messiest eaters at the table, left food all over the place after dinner.

b.
john, and jorge, the messiest eaters at the table left food all over the place after dinner.

c.
john and jorge the messiest eaters, at the table, left food all over the place after dinner.

d.
john and jorge the messiest eaters at the table left food all over the place, after dinner.

A.  John and Jorge, the messiest eaters at the table, left food all over the place after dinner.

Explanation:

An appositive is usually a noun/pronoun that can replace or find out another noun/pronoun in someway or the other. An appositive phase can be of two types -

An appositive phrase=An appositive+Modifiers.

So as to punctuate an appositive - after both the names there should a comma which then separates it from the description of the person (which is the messiest eaters at table) and again a comma which separates the description of the persons from the content.