Which property is illustrated?18 + 9 = 9 + 18distributive propertyassociative property of additionidentity property of additioncommutative property of addition

Option D- Commutative property of addition.Answer: 18 + 9 = 9 + 18 which illustrate commutative property of addition. Solution: Step 1: The given data is a commutative property of addition, because no-matter where we put the numbers, you will always get the same answer. This can be represented by a + b = b+ aStep 2: From the given Data 18 + 9 = 9 + 18  When we add LHS and RHS we get the same answer 27. Step 3: If we exchange the numbers in this problem then also you will get the same answer. 9 + 18 = 18 + 9 which gives 27.  Result: Hence we come to the conclusion; the given data illustrates commutative property of addition.