How did the national geographic video use media to aid understanding of
how flu viruses work in the body?
o
a. there were graphs showing statistics of flu cases by year,
o
b. there was a picture of a plane taking off with a sick child on
board
o
c. photographs illustrated a farm yard where animals got sick.
o
d. there were colorful graphics of flu viruses replicating.

explanation:

even though i have not watched the video based of the question i believe that the answer would be a because even though they show graphs, graphs can show to increase or decrease of a persons and or places status and in this case for the flu

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martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.