A high degree of urbanization does not result in an elevated amount of

A high degree of urbanization does not result in an elevated amount of air pollution. If it did, countries with the highest percentage of their populations living in cities would also be afflicted with the worst air pollution. On the contrary, when countries of roughly equal populations are compared, no correlation between degree of urbanization and amount of air pollution is evident.

If the statements above are true, which of the following can be properly inferred based on those statements?

A. Countries of about the same population tend to have about the same level of urbanization. Incorrect

cant be say from argument, argument is related with pollution

B. A reduction in the percentage of a country's population that lives in urban areas would not necessarily result in a reduction in that country's level of air pollution. Correct

can say from last line of the argument, no relation between degree of urbanization and amount of air pollution

C. Highly urbanized countries tend to do a better job in keeping the level of air pollution low than do countries that are not highly urbanized. Incorrect

irrelevant

D. When countries of similar size are compared, the most highly urbanized countries are also the ones with the least amount of air pollution. Incorrect

contradicts with argument

E. The smallest countries tend to have the lowest concentrations of air pollution. Incorrect

not true