Select the set in which the numbers are related in the same way as are the numbers of the following set.
(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)
(39, 81, 123)
(56, 32, 8)
1
(61, 57, 53)
2
(42, 33, 15)
3
(97, 63, 38)
4
(24, 35, 31)