Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE: Operations should be performed on the whole numbers, 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)
(25, 49, 73)
(34, 23, 12)

Correct option is C

difference of first and second number = differnce of second and third number
(25, 49, 73) = 25 + 24 = 49, 49 + 24 = 73
(34, 23, 12) = 34 - 11 = 23, 23 - 11 = 12
18, 22, 26 = 18 + 4 = 22, 22 + 4 = 26