Gillian creates a model of a Ferris wheel. The wheel has a radius of 1 ft, and there are 8 baskets numbered 1 through 8 on the wheel, as shoe in diagram below. Gillian turns the wheel clockwise from its current position so that basket #4 is at the bottom. What is the radius angle through which the wheel turns expressed in radian measure?

Answer options:

A) 5 π / 4

B) 3 π / 4

C) 2 π / 3

D) 5 π / 6