A Flat Coil Having 160 Turns,each with an Area of 0.20

Multiple Choice

A flat coil having 160 turns,each with an area of 0.20 m²,is placed with the plane of its area perpendicular to a 0.40T $\vec { B }$ field.The magnitude of the $\vec { B }$ field changes uniformly from 0.40 T in the +x direction to 0.40 T in the -x direction in 2.0 s.If the resistance of the coil is 16 Ω,at what rate is power generated in the coil during this change?

A) 5.0 W
B) 10 W
C) 15 W
D) 20 W