People is the plural of person that's most commonly used to refer to multiple humans. But people can also be used as a singular noun to refer to a population or particular community.
Try to underline the particular word so that it would be much easier
The error in this sentence is a A) pronoun-antecedent voice agreement error. But it should be noted that this has become more standard usage in common dialogue.
Answer:
Cooperative Games unite players against the game itself. Competitive games set players against each other. Only one player can win a competitive game.
Explanation:
They sorta give you the answer in the text. Did I help?
