I got C as my answer and what i did was:
emf=(0.03 X 0.05) X (100) X (0.35) X ((cos(55)-cos(90)/0.33) = 91 mV
i dont think your fraction with the cos are correct. initially, the plane is 55 to the mag feild, and it ends up at a perpendicular state. if we use cos in this situation, its the angle bw the area vector (perp to the plane) and the magnetic feild. this means initially, the angle between the area vector and mag feild is 35, and at the end its 0. therefore it should be emf=(0.03 X 0.05) X (100) X (0.35) X ((cos(0)-cos(35)/0.33) = 2.8mV which is not an answer so idk where i went wrong
