A path of length 14 \mathrm{~m} consists of 7 unshaded stripes, each of length 1 \mathrm{~m}, alternating with 7 shaded stripes, each of length 1 \mathrm{~m}. A circular wheel of radius 2 \mathrm{~m} is divided into four quarters which are alternately shaded and unshaded. The wheel rolls at a constant speed along the path from the starting position shown.
The wheel makes exactly 1 complete revolution. The percentage of time during which a shaded section of the wheel is touching a shaded part of the path is closest to
Answer Choices
A. 20 \%
B. 18 \%
C. 16 \%
D. 24 \%
E. 22 \%