The correct answer for this question is letter "C. The article informs readers about the flu's effects on the economy."
There exists the same question from other source:
A. The article asks readers whether they intend to get vaccinated.
B. The article tries to persuade readers to get vaccinated against the flu.
C. The article informs readers about the flu's effects on the economy.
D. The article informs readers about how the flu virus migrates and spreads.
