Prove. (9m)•4+m+37m

1. (9m)•4+m
answer: given

2. 4•(9m)+m
answer: commutative property

3. (4•9)•m+m
answer:

4. 36m+m
answer: commutative property

5. 37m
Answer: addition

what is the correct reason for statement 3?

A. associative property

B. multiplication

C. Distributive property

D. Addition