This graph shows the number of American troops in Afghanistan from 2001 to 2011.
Between 2008 and 2011, the number of US troops
a. increased slightly.
b. increased significantly.
c. decreased slightly.
d. decreased significantly.
![This graph shows the number of American troops in Afghanistan from 2001 to 2011Between 2008 and 2011 the number of US troopsa increased slightlyb increased sign class=](https://us-static.z-dn.net/files/d2f/d80289797b599f13e1040aee3f556981.jpg)