Although Touch-Screen Voting Machines Are Becoming Increasingly Popular,these Machines Are

Although touch-screen voting machines are becoming increasingly popular,these machines are controversial for all of the following reasons EXCEPT:

A) the costs of the machines
B) the potential for delays on Election Day
C) voter difficulties that often come with new technologies
D) concerns that the machines could be manipulated to change election outcomes
E) concerns that the machines could make it more difficult for the visually impaired to vote