Question 22(Multiple Choice Worth 2 points) (02.06 LC)

Which sentence uses commas correctly?

Mountain gorillas are herbivores that eat roots, shoots, fruit, wild celery, tree bark and tree pulp.
Mountain gorillas are herbivores that eat, roots shoots, fruit wild celery tree bark, and tree pulp.
Mountain gorillas are herbivores that eat, roots, shoots, fruit, wild celery, tree bark and, tree pulp.
Mountain gorillas are herbivores that eat roots, shoots, fruit, wild celery, tree bark, and tree pulp.