Study the given pattern carefully and select the number from the given options that can replace the question mark (?).

3	6		2	15		2	20		3	12
7	2		25	6		9	5		?	4

Logic: The Pattern in the given data is following:

In Column 1 and Column 2:

3² + 2² = 7 + 6

9 + 4 = 13

In Column 3 and column 4:

2² + 6² = 25 + 15

4 + 36 = 40

In Column 5 and column 6:

2² + 5² = 9 + 20

4 + 25 = 29

In Column 7 and column 8:

3² + 4² = ? + 12

9 + 16 = ? + 12

? = 25 - 12

? = 13

Thus, the Correct option is (d)