Special intersections that allow bicyclists ahead of motor vehicle traffic in order to make it safer for them to turn or cross are known as

B. bike boxes.

Answer choices are:

A. sharrows.

B. bike boxes.

C. bike lanes.

D .all of the above

All of the above are designated places for the exclusive use of bicycles. A  sharrow is a street marking installed at locations to indicate where people should preferably cycle while a bike lane is just a portion of the roadway for the exclusive use of the bicyclists.  A bike box is a special intersection that allows bicyclists ahead of motor vehicle traffic make it safer for them to turn or cross. 

The answer is price.

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