Answer:
D
Explanation:
I'm just typing this part to get to 20 characters
change it to 269 then add 15
The numbers:
1, -3, 2, -9, 3, -15, 4, -21,
are not linear.
Step-by-step explanation:
If it was linear:
4, 3, 2, 1, -3, -9, -15, -21
B is the correct answer