The London Eye, a Giant Ferris Wheel, Has a Diameter

The London Eye, a giant Ferris wheel, has a diameter of 135 m. It revolves at a constant rate and takes 30 minutes to complete one revolution. What is the linear velocity of a rider in a capsule that is located at the perimeter of the wheel?

A) 0.24 m/s
B) 0.47 m/s
C) 3.5 m/s
D) 7.1 m/s
E) None of the above.