单选题
An analyst does research about the cumulative relative frequency and gathers the following frequencies from a sample of 90 observations:
| Return Interval | Absolute Frequency |
| -9% to -6% | 3 |
| -6% to -3% | 6 |
| -3% to 0% | 28 |
| 0% to 3% | 34 |
| 3% to 6% | 17 |
| 6% to 9% | 2 |
The cumulative relative frequency of returns less than 0% is closest to:
A. 10%
B. 41%
C. 59%