A Wheel with an Initial $\omega = 0$ Rotates at Constant $\alpha ( \neq 0 )$

Multiple Choice

A wheel with an initial $\omega = 0$ rotates at constant $\alpha ( \neq 0 )$ . A while later, the acceleration of a point on the rim must include all of the following except

A) a tangential component.
B) a radial component.
C) a fixed direction, with respect to a radial line connecting the point on the rim to the axis of rotation.
D) Hold it! There are no exceptions.