Use the Following Figure for the Next Problem $\circ$ So That One End Lies Along the Xy Plane

Multiple Choice

Use the following figure for the next problem.
-A rectangle is bent on two sides at 90 ^$\circ$ so that one end lies along the xy plane while the other end lies along the xz plane.The length a = 10 cm and b = 30 cm.A magnetic field of strength B = 0.1 T lies in the yz plane and points at an angle $\theta$ = 30 ^$\circ$ with the y axis.The flux through the rectangle is

A) 52.0 mWb
B) 30.0 mWb
C) 41.0 mWb
D) 60.0 mWb
E) None of these is correct.