You don't have answer choices but here is the definition so you can better understand it!
Explanation:
Indirect characterization is the process by which the writer shows the character's personality through speech, actions and appearance. When you watch a movie or television show, you can usually gather what type of person the main character is based on the character's actions and reactions in different situations.
I believe it is option "D.) The flu vaccine is not reliable enough to be worthwhile" It would have a negative impact on the economy due to people not spending money to have the flu vaccine.
