The Coil Shown in the Figure Has 2 Turns,a Cross-Sectional

The coil shown in the figure has 2 turns,a cross-sectional area of 0.20 m²,and a field (parallel to the axis of the coil) with a magnitude given by B = (4.0 + 3.0t²) T,where t is in s.What is the potential difference,V_A − V_C,at t = 3.0 s?

A) −7.2 V
B) +7.2 V
C) −4.8 V
D) +4.8 V
E) −12 V