Which of the following demonstrates the Commutative Property of Multiplication?

a 5(2a − 3) = 10a − 15
b 10a − 15 = (2a − 3) ⋅ 5
c 5(2a − 3) = (2a − 3) ⋅ 5
d (5 ⋅ 2a) − 3 = 5(2a − 3)