单选题
An investor's transaction in a mutual fund and the fund's returns over a four-year period are provided in the following table：
| Year | ||||
| 1 | 2 | 3 | 4 | |
| New investment at the beainnina of the Year(US$) | 2,500 | 1,500 | 1,000 | 0 |
| Investment return for the Year | -20% | 65% | -25% | 10% |
| Withdrawal by investor at the end of the rear(US$) | 0 | -500 | -500 | 0 |
based on this data,the money-weighted return(or internal rate of return)for the investor is closest to:
【正确答案】
C
【答案解析】
The money weighted return is calculated by solving for/in the following equation：
