A magnet NS is suspended from a spring and while it oscillates, the magnet moves in and out of the coil C. The coil is connected to a galvanometer G. Then as the magnet oscillates, 

• A

  G shows deflection to the left and right with constant amplitude

• B

  G shows deflection on one side

• C

  G shows no deflection. 

• D

  G shows deflection to the left and right but the amplitude steadily decreases.