How will the magnetic flux through the coil change as the rotation occurs if B is kept constant?

B is kept constant but the coil is rotated so that the magnetic field, B, is now in the plane of the coil. How will the magnetic flux through the coil change as the rotation occurs? Choose all that apply.

AThe flux is unchanged because the magnitude of B is constant.

BThe flux increases because the angle between B and the coil's axis changes.

CThe flux decreases because the angle between B and the coil's axis changes.

DThe flux is unchanged because the area of the coil is unchanged.