The correct asnwer is D. was the subject of the sentence is "the politician", which is in singular so the verb needs to be singular too: B and C are not good
Additonally, we need a passive voice, and this is formed with the verb "to be" . "was" is a past form of "to be", and "does" isn't- so A isn't a good oprion.
<em>Child soldiers are not morally responsible for their actions. Children are often forced into fighting and have little choice over whether or not they enlist. ... The recruiters of child soldiers also use drugs and alcohol to make children more compliant and to enable them to commit acts they would not ordinarily commit. </em>
