There are two coils A and B as shown in Fig 6.2. A current starts flowing in B as shown, when A is moved towards B and stops when A stops moving. The current in A is counterclockwise. B is kept stationary when A moves. We can infer that
As we know that rate of change of magnetic flux is given as 
. In coil B current is in counterclockwise direction as given in question.
So 
in coil A due to coil B will be same because coil A moves with constant velocity towards coil B. So in coil A current will be constant and will be in same direction as in B coil in accordance with Lenz’s law.
Now coming to the options with above discussion, option (a) is totally wrong because current is in counterclockwise direction in coil A. Current is constant in coil A so option (b) also eliminated. Option (c) is totally wrong.
Therefore, option (d) is the correct answer.