100
1. Which sentence is written correctly?
A.I know someone who likes pepperoni, ham, pineapple, and olives on their pizza.
B.I know someone who likes pepperoni, ham pineapple and olives on their pizza.
C.I know someone who likes pepperoni ham pineapple and olives on their pizza
A.
The first sentence is correct. Commas are used between words phrases, or clauses in a series.