[单选题]
A bicycle wheel rotates uniformly through 2.0 revolutmg. qwvg+wd1iri 23n *ions in 4.0 s. Whccxs2eenm : 5 k /ft;i2+y1higng*h m0at is the average angulaectx2 n*k21c+yg si/m g mi nh5e:f;0hr speed of the wheel?
A. 0.79 rad/s
B. 1.6 rad/s
C. 3.1 rad/s
D. 6.3 rad/s
