The only option that represents a terminating decimal is 0.23.
- 0.23 is a terminating decimal because it has a finite number of digits after the decimal point.
- 0.232323 is a repeating decimal (with the "23" repeating indefinitely).
- 0.23... implies that 0.23 continues indefinitely, which would also indicate a repeating decimal.
So the correct answer is 0.23.