Choose the sentence that shows the CORRECT use of a comma in a series.

Margie is a bright, cheerful, fun-loving, person.
Roast beef, turkey, or ham is usually served for a holiday dinner.
The zoo now has, a gorilla, a panther, and a giraffe on site.
The students can choose to study Spanish French, or Italian.

The sentence that shows the CORRECT use of a comma in a series is: "Roast beef, turkey, or ham is usually served for a holiday dinner."