Use the map on H1N1 confirmed cases below to answer the following question: A global map shows the number of confirmed cases of H1N1 flu in 2009. The key has six shades. The lightest shade equals one or more confirmed case. The second darkest shade equals five or more confirmed cases. The third darkest shade equals 50 or more confirmed cases. The fourth darkest shade equals 500 or more confirmed cases. The fifth darkest shade equals 5,000 or more confirmed cases, and the sixth darkest shade equals 50,000 or more confirmed cases. Most of the African countries had 50 or less confirmed countries, with the exception being the North African and southeastern coastal areas. All of North America except Greenland, most of South America, Europe, Asia, and the Pacific countries have between 500 and 50,000 confirmed cases.
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What might account for the fact that developed countries were more affected than developing countries during the H1N1 pandemic? (5 points)

Group of answer choices

People in developing countries have access to more medical supplies.

Developing countries were avoiding consuming contaminated food.

People in developed countries traveled more and exposed more people.

Developing countries were able to use large armies to prevent exposure.