How is a comma being used in the below sentence:

I went to the grocery store to buy flour, sugar, apples, and cinnamon.



(1 point)
Responses

Long introductory element
Long introductory element

Appositive phrase
Appositive phrase

Items in a series
Items in a series

Compound Sentence

1 answer

In the sentence "I went to the grocery store to buy flour, sugar, apples, and cinnamon," the comma is being used for items in a series.