Which of the following is an arithmetic sequence?
O A. 0, 3, 8, 15, 24, 35, ...
O B. 9, 4, -1, -6, -11, -16, ...
O C. 1, 3, 6, 10, 15, 21, ...
O D. -1,0,1,0,3, 0, -..
An arithmetic sequence is when there is a constant difference between terms. And in this case if you count the spaces in between each number, you get that each one is less than the last by 5. Whereas the other ones change constantly.
