The Torque Caused by a Force F Applied at a Distance

Multiple Choice

The torque caused by a force F applied at a distance r from the axis of rotation,is given by τ = rF​sinθ,where θ is the angle between
And
) If the magnitudes r and F remain the same,what other angle θ' will produce the same torque as was produced at angle θ if θ was less than 90°?

A) θ' = ​90° - θ
B) θ' = ​90° + θ
C) θ' = ​180° - θ
D) None of the above.