Yes, an argument can sometimes help you realize different sides of each situation. Pros and cons. And maybe it could change the way you think about it
The answer is: Cite. Use information from what you need to support your answer.
Answer: Hasty generalization.
Explanation: You immediately assumed that because you met two Californians that were tan, you assumed that all Californians are tan, despite only meeting two. Thus, it's a hasty generalization.
Motif is a reoccurring theme or idea shown with symbolic value, and theme is a general concept that the author wants readers to see. These both help readers understand or grasp a better understanding of plot, so the answer is c.