The article states:
These young people, mostly ages 16 and up, assist at polling sites, the venues where voters cast their ballots during elections. Poll workers handle tasks such as checking in voters and educating them on how to use voting machines.
Why did the author include this passage?
A.To describe the process of how to cast a ballot during an election
B.To explain the nature of a polling place and the role of poll workers
C.To argue that only those old enough to vote should be poll workers
D.To justify why poll workers need special training to do their jobs
