B= { x is an element of natural numbers | x is a multiple of 3 } D = { x is an element of natural numbers | x is even } Use the roster method to list all of the elements in this set. __ __ B U D This is what I came up with . { 1,2,3,4,5, 7,8,9,10,11, 13,14,15,16,17,...........} Solution B= { x is an element of natural numbers | x is a multiple of 3 } B ={ 3,6,9,.......} B\' = { 1,2,4,5,7,8,......... D = { x is an element of natural numbers | x is even } D = { 2,4,6,8,.........} D\' = {1,3,5,7} Use the roster method to list all of the elements in this set. __ __ B U D = u r correct. This is what I came up with . { 1,2,3,4,5, 7,8,9,10,11, 13,14,15,16,17,...........}.