A short bar magnet pleaced with its axis at `30^(@)` with a uniform external magnetic field of `0.16` Tesla expriences a torque of magnitude `0.032` Joule. The magnetic moment of the bar magnet will be
A. `0.23 "Joule"//"Tesla"`
B. `0.40 "Joule"//"Tesla"`
C. `0.80 "Joule"//"Tesla"`
D. zero