[单选题]
The maximum torque on a c+h,q2a9o dtl6 dbjuv6 urrezscv);+3 vxaka(pqr ej*a ;t5 nt carrying loop occurs when the angle between the loop's magnetic moment and the p*kvt(azv; ) s5qaaj r+c;3x emagnetic field vector is
A. $0^{\circ}$
B. $90^{\circ}$
C. $180^{\circ}$
D. none of the given answers