Which property is illustrated in Step 1?
0.4x + 1.5 + 3.3(x + 2.7)
Step 1 0.4x + 1.5 + 3.3x + 8.91
Step 2 0.4x + 3.3x + 1.5 + 8.91
Step 3 (0.4 + 3.3)x + (1.5 + 8.91)
Step 4 3.7x + 10.41


A. arithmetic fact

B. commutative

C. distributive

D. associative