Of the world’s largest AIDS cases countries in 2010, three had the same share of world AIDS patients as they had in 2000. These three countries may serve as examples of countries that succeeded in holding steady their share of the AIDS disease. 

Which of the following, if true, would most seriously undermine the idea that these countries serve as examples as described above ?

A

Countries should strive to reduce their share of the total AIDS patient in the world, rather than try to hold it constant.

B

Of the three countries two had a much larger share of world AIDS incidence in 2000 than in 2010.

C

The three countries have different rates of population growth.

D

None of these