Use the Following Information to Answer the Questions Below

Use the following information to answer the questions below.
Throughout history, human populations have been impacted by viral outbreaks. In the past 100 years we have seen several devastating epidemics and pandemics that have put people at risk. Worldwide, annual seasonal flu epidemics result in about three to five million cases of severe illness, and about 250 000 to 500 000 deaths annually. Most deaths associated with seasonal influenza in industrialized countries occur among people age 65 or older.
In 2009, a new strain of influenza, H1N1, entered the global scene. Within the year it had spread to 207 countries, infected 600 000 people, and killed 8000 worldwide. The pandemic alert was raised and a coordinated, concerted effort around the world was implemented to bring this flu under control. H1N1 is most likely a variation of the Spanish flu (also called H1N1) ; this flu was responsible for over 40 million deaths worldwide in the pandemic of 1918 (killing over 2.5% of the entire human population in one year) .
-Considering the statistic of seasonal flu, why did this strain create such alarm?

A) This virus spread quickly to more countries than normal.
B) The pattern of infection and death among young, healthy people was contrary to the typical pattern of influenza.
C) There was fear of it infecting livestock and putting our food supply at risk.
D) They had developed a vaccine for it and wanted to see how well it worked.
E) The death toll was higher than projected.