The Drive Chain on a Bicycle Applies a Torque of 0.85

The drive chain on a bicycle applies a torque of 0.85 N m to the wheel of the bicycle. What force must be applied tangentially at the rim of the wheel, of diameter 0.7 m, to stop it accelerating?

A) 1.21 N, radially along the wheel
B) 1.21 N, tangentially to the wheel
C) 2.43 N, radially along the wheel
D) 2.43 N, tangentially to the wheel