A Circular Loop of Wire Has Its Radius Reduced in Half

Multiple Choice

A circular loop of wire has its radius reduced in half in time Δt.A uniform magnetic field is at an angle of 60° to the plane of the coil,and the magnetic field doubles its intensity in the same time interval Δt.During this interval,what happens to the flux through the coil?

A) It increases.
B) It decreases.
C) It remains the same.
D) More information is needed to make this conclusion.