Concept: A subset contains only elements that already belong to the parent set.Explanation:Given that set N is a subset of set M, every single member of N must also be present in M.For example, if N={2,4} and M={1,2,3,4,5}, then all elements of N are found inside M.Thus, the statement that correctly describes the relationship is that all members of set N are in set M.Answer: Option D: all members of set N are in set M.