A Coil of Radius R = 5 Cm Lies Inside $\theta$

Multiple Choice

A coil of radius R = 5 cm lies inside a long solenoid which carries a current I₁ = 10 A and has 800 turns/m.The coil carries a current I₂ = 4 A and the normal of the plane of the coil is at an angle $\theta$ = 30 ^$\circ$ with the axis of the solenoid.The magnitude of the torque on the coil is

A) 1.56 $\times$ 10^-4 N . m
B) 2.74 $\times$ 10^-4 N . m
C) 5.03 $\times$ 10^-5 N . m
D) 3.16 $\times$ 10^-4 N . m
E) none of the above