Answer: A. The fact that the sick person is a child helps underscore the point that anyone can spread the flu.
Explanation:
1) The video, as the title suggests is about “How flu viruses attack”, and through statistical data as well as everyday realities of transmission, it shows how quickly and easily it can spread. The commonly used phrase that “it’s so easy even a child can do it”, is an underlying irony of this picture, because, it in fact is a reality in this case.
2) The video also shows how the early symptoms of flu are deceptive and can be easily mistaken for those of common cold. The picture of the child coughing reinstates how seemingly “innocent” the onset and the spread of flu is.
3) Children are commonly associated with life and harmlessness and this image strengthens the warning that the video gives regarding flu viruses on many levels, like:
a. A harmless child can become the agent of a dangerous and deadly pandemic.
b. A seemingly innocent symptom can be fatal. The image contrasts the liveliness associated with children (absent in the picture) to the deadliness of flu.
4) This is further evidenced at 0:40 seconds in the video, when the narrator says, “No one, not her parents or other passengers, would suspect this little girl could be ground zero for a world-wide pandemic.”
Moreover, the answer cannot be option B, because the video does not focus on or is about exotic vacations; or option C, because the statistics and data shown was neither related to nor mentions data categorized by class, rather it talks about the spread, process, and history of flu. Option D can also be easily eliminated because the given picture does not show red lungs.