If the diameter of a bicycle wheel is 0.5 meter, how many meters has the center of the wheel traveled when the wheel has made 3 complete revolutions along a straight road?
Answer Choices
* (A) (3 times pi) over 2
* (B) 3 times pi
* (C) 12 times pi
* (D) (25 times pi) over 2
* (E) 25 times pi