Correct option is D
The differences between the numbers:
30 to 28: Difference = -2
28 to 24: Difference = -4
24 to 16: Difference = -8
16 to 0: Difference = -16
As we observe, the differences are doubling in magnitude: -2, -4, -8, -16.
Following the same pattern, the next difference should be -32.
Thus, the next number in the series will be:
0 - 32 = -32.
The correct answer is (d) -32.