Which is a complete list of each term of each term in the expression 15 + 20x?

A. 15: 1, 3, 5, 15
20x: 1, 2, 4, 5, 10, 20, x

B. 15: 1, 3, 5, 15
20x: 1, 2, 4, 5, 10, 20

C. 15: 3, 5
20x: 4, 5, x

D. 15: 1, 3, 5
20x: 1, 2, 4, 5, 10, x