Which of the following are examples of an arithmetic sequence?

Question

Responses

2, 4, 8, 16, 32, 64
2, 4, 8, 16, 32, 64

10, 8, 6, 4, 2, 0
10, 8, 6, 4, 2, 0

5, 9, 13, 17, 19, 20
5, 9, 13, 17, 19, 20

1, −3, −7, −11, −15, −19

Answer 1

10, 8, 6, 4, 2, 0
1, −3, −7, −11, −15, −19