During president obama’s first term in office, he promised to withdraw troops from afghanistan. continued the withdrawal of troops from iraq. officially ended the war in afghanistan. sent large numbers of us troops to iraq.

Explanation:

The US involvement in Iraq had been controversial since it started. Under President George W. Bush, American military forces had bombed and invaded Iraq as a "preemptive action."  There were rumors of Saddam Hussein (Iraq's leader) having weapons of mass destruction that he was poised to use.  It turned out that was not accurate, and the US had over-committed itself to a war zone in Iraq without solid justification for being there.

c or d both can be the answer