Correct Answer:

Solution : According to the given figure –
1. The figure which is at the centre of the box number of corners has been increased by one.
2. The figures in the centre are shaded and unshaded alternatively.
3. As we move from one box to another, it changes its position in the clockwise direction and 1 has been added in the place value of the letters to obtain the letters for the next box.

Therefore, following the above pattern, the required figure will be –

Hence, the fourth option is correct.