Which equations illustrate the commutative property of multiplication?


Choose exactly two answers that are correct.


A.

-1/2 • 3.4 = 3.4 • (-1/2)


B.

–8 • (5 + 3.1) = (5 + 3.1) • (–8)


C.

–4 • (5 + 7.1) = –4 • 5 + (–4) • 7.1


D.

–8 • (4 • 1) = (–8 • 4) • 1