Question

is the answer a, b, c, or d.

Answer 1

I would say, (A) or (B) BUT I believe its more likely to be A 

Answer 2

For this case we have the following arithmetic sequence:
 8, -2, -12, -22 ...
 We observe that, the common difference is given by:
 d = -2 - 8
 d = -10
 Therefore, the recursive formula for this case is given by:
 an = an-1 - 10
 Where, n> = 2
 Answer:
 option B.