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.)
(5, 41, 4)
(2, 68, 8)
1
(6, 100, 8)
2
(5, 18, 4)
3
(5, 100, 4)
4
(4, 49, 3)