Correct option is D
Given:

Logic:
The outer number is obtained by adding the inner numbers in a clockwise direction, starting from 4.
4 + 1 = 5
4 + 1 + 8 = 13
4 + 1 + 8 + 4 = 17
4 + 1 + 8 + 4 + 1 = 18
4 + 1 + 8 = 13
4 + 1 + 8 + 4 = 17
4 + 1 + 8 + 4 + 1 = 18
Thus, the correct answer is (d).







