if each cat population doubles by 2010, which value will be closest to the average pet cat population for these countries in 2010?
A) 18 million
B) 9 million
C) 12 million
D) 15 million
![if each cat population doubles by 2010 which value will be closest to the average pet cat population for these countries in 2010 A 18 million B 9 million C 12 m class=](https://us-static.z-dn.net/files/d43/a8b4a47dd543c3f33a9bd68cb2d1969b.png)