Three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?
(NOTE: Operations should be performed on the whole mumbers, without breaking down the numbers into its constituent digits. E.g., 13-Operations on 13 such as adding subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

Correct option is B

Logic : (1st number - 2nd number) × 5 = 3rd number
So,
Option - (a) : 17 - 14 - 15
(17 - 14) × 5 = 15
3 × 5 = 15
15 = 15 (LHS = RHS)
Option - (b) : 33 - 26 - 25
(33 - 26) × 5 = 25
7 × 5 = 25
35 ≠ 25 (LHS ≠ RHS)
Option - (c) : 39 - 33 - 30
(39 - 33) × 5 = 30
6 × 5 = 30
30 = 30 (LHS = RHS)
Option - (d) : 22 - 18 - 20
(22 - 18) × 5 = 20
4 × 5 = 20
20 = 20 (LHS = RHS)