In questions, there are three problem figures followed by a mark of interrogation (?) for the fourth one. There exists a relationship between the first two problem figures. A similar relationship should exist between the third and fourth problem figures. Select one figure from the answer figures which replaces the mark of interrogation. Indicate the correct letter of the answer figure.

Answer

A

Explanation

In second figure from first the middle part of design forms after becoming coloured. So in fourth figure from third the middle part of design will form plane from coloured.