The current through a stationary loop in a constant magnetic field:

Increases to a maximum

Increases, then decreases to zero

Remains zero

Reaches alternating positive and negative maxima

remains zero

Explanation:

According to the Faraday's law of electromagnetic induction, when the magnetic flux linked with the coil changes, an induced emf is developed in the coil.

Here the loop is kept stationary in a constant magnetic field, so no magnetic flux linked with the coil changes, hence the current remains zero in the coil.