Which sentence does not contain any punctuation errors?

A.
My two best friends Alexandra and Bethany, went with me on a shopping trip.

B.
My two best friends, Alexandra and Bethany went with me on a shopping trip.

C.
My two best friends, Alexandra, and Bethany, went with me on a shopping trip.

D.
My two best friends, Alexandra and Bethany, went with me on a shopping trip.