A motorist should know that he/she is entering a work zone because of

(A) The presence of a “flagger”

(B) Diamond-shaped, orange Work zone signs

(C) A sign with a flashing arrow panel

(D) All of the above

Answer: D

All of the above 

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Explanation

A motorist should be aware and know that he or she is entering a work zone because of highways marked by barrels, cones, and also signs where road construction is taking place.

With the sign of A flashing arrow panel, diamond-shaped , orange work zone signs and the presence of  a ‘flagger’  a motorist should know that he or she is entering a work zone .