Correct Answer:

Solution : Here the pattern is as follows –
1. From Figure 1 to Figure 2, U and B shifted to the centre and bottom left corner respectively and X shifted to the upper right corner, and the square was replaced with a semi-circle.
2. From Figure 2 to Figure 3, the same process is repeated, but this process is done from the top left corner to the lower right corner and X is replaced with 9.
3. By using the same logic from Figure 4 to Figure 5, equals to (=) and 9 are shifted to the centre and lower right corner, and the semicircle is replaced with L.

The following figure will complete the pattern –

Hence, the fourth option is correct.