(Solved): Which \( X X X \) would replace the missing statement in the given SetDifference algorithm? SetDif ...

Which \( X X X \) would replace the missing statement in the given SetDifference algorithm? SetDifference(set1, set2) \{ result \( = \) Create new, empty set for each (element in set 1\( )\{ \) if (XXX) \( \quad \) Add element to result \( \quad\} \) SetSearch(set2, element \( \cdots \) key \( )== \) null SetSearch(set2, element.*key) != null SetSearch(set2, element.key) \( \geq \) null