"The sum of any two whole numbers is a whole number." This property of whole numbers is referred to as

The closure property states that when an operation is performed on members of a set, the result is also a member of that set. Here, adding any two whole numbers always produces a whole number, demonstrating that whole numbers are closed under addition. Commutative property is a+b = b+a, associative is (a+b)+c = a+(b+c), and distributive is a×(b+c) = a×b + a×c. The given statement specifically describes closure.