Correct option is B
In this question following logic is followed-
(1st)2 + (2nd)2 = 3rd Number
2, 9, 85 → 22 + 92 = 4 + 81 = 85
3, 9, 90 → 32 + 92 = 9 +81 = 90
Similarly,
7, 9, 130 → 72 + 92 = 49 + 81 = 130
Therefore, the correct answer is (b).