Find the Magnetic Field That Produces a Maximum Torque of 3.14

Find the magnetic field that produces a maximum torque of 3.14 Nm on a coil of wire with 22 loops a length of 30 cm and a width of 20 cm.The coil has a resistance of 50 ohms and is connected to a 120-V battery.

A) 0.020 T
B) 0.048 T
C) 0.99 T
D) 5.7 T
E) 22 T