Select the figure from among the given options that can replace the question mark (?) in the following series.

In the first, second, third and fourth box, two, three, four and five circles are available. So in the fifth box, six circles should be there. By this option (d) can be eliminated.

From one box to the other one, the shape is moving $$45^{\circ\ }$$ in an anticlockwise direction. By this options (b) and (c) can be eliminated.

Hence the figure given in option (a) will come in place of the question mark.