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Question
Work zone barriers, drums, cones, and signs are used to:
Answers
A.  Make drivers angry about slow traffic.
B.  Inconvenience drivers.
C.  Keep traffic out of hazardous work zones.
Explanation
Work zones on highways have become increasingly dangerous places for both workers and drivers. When approaching a work zone, watch for materials such as cones, barrels, signs, large vehicles, and workers in brightly colored vests to warn you and direct you.
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