520.A driver reaches an intersection and a traffic control officer signals the driver to turn left. How should thedriver proceed?
(A) Turn left immediately as directed; the officer has ensured the intersection is clear, sono need to watch for other vehicles or pedestrians.
(B) Turn left as directed, but still slow down whileturning and watch for oncoming straight-through vehicles and pedestrians at the intersection.
(C) Observeand confirm safety independently before deciding whether to turn left; the hand signal is only asuggestion.

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