Select the number that can replace the question mark (?) in the following series.

12, 8, 4, 0, -4, ?

Given: 12, 8, 4, 0, -4, ?​

Logic: Difference between consecutive term is - 4.

12 - 4 = 8

8 - 4 = 4

4 - 4 = 0

0 - 4 = - 4

- 4 - 4 = - 8

So, the missing term is - 8.

Thus, correct option is (d).