[单选题]
The maximum torque on a current carrying loop occurs when q87pd*md1xuhk1ez l fa +9j0d tx-ffjg83d7b 8to.kvamnhu w0d)y m44 he angle between the looxf8 ubj f4dvn 3ok8a7 gy mhm.)w0-4dtp's magnetic moment and the magnetic field vector is
A. $0^{\circ}$
B. $90^{\circ}$
C. $180^{\circ}$
D. none of the given answers
