In questions, there are three problem figures on the left-hand side and the space for the fourth figure is left blank. The problem figures are in a series. Find out one figure from among the answer figures given on the right-hand side which occupies the blank space for the fourth figure on the left-hand side and which completes the series. Indicate your answer by the letter of the answer figure choosen by you.

Answer

A

Explanation

One blackened and one blank circles are increasing alternately in each problem figure. Hence, answer figure A will be required answer.