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.)
(36, 90, 18)
(15, 35, 8)
1
(14, 45, 5)
2
(14, 42, 7)
3
(13, 78, 6)
4
(12, 60, 8)