Indicate which property is illustrated in Step 1.


Step 1 5 + (3 + 10) + 0 = 5 + (10 + 3) + 0

Step 2 = (5 + 10) + (3 + 0)

Step 3 = (5 + 10) + 3

Step 4 = 15 + 3

a associative property of multiplication

b commutative property of addition

c identity property of addition

d associative property of addition