Answer: C. They portray
Explanation:
The above answer is the best change that should be made because the use of the pronoun, ''they'', is the correct pronoun to use when referring to more than one subject such as the animated cartoons in question.
When plural pronouns - such as ''they''- are used, the action being described should be in a singular form which is why the correct term would be ''portray'' not ''portrays''.
