这题没看懂，求解答

问题如下：

Which of the following is true regarding private equity performance calculations?

选项：

A.The money multiple calculate relies on the amount and timing of cash flows. B.The IRR calculation involves the assumption of two rates. C.Because private equity funds have low volatility, accounting conventions allow them to use a lagged mark-to-market process.

解释：

B is correct. The determination of an IRR involves certain assumptions about a financing rate to use for outgoing cash flows (typically a weighted average cost of capital) and a reinvestment rate assumption to make on incoming cash flows (which must be assumed and may or may not actually be earned).

A is incorrect because the money multiple calculation completely ignores the timing of cash flows.

C is incorrect because it is somewhat of a reversal of cause and effect: Private equity (PE) funds can appear to have low volatility because of the lag in their mark-to-market process. It’s not that PE investments don’t actually rise and fall behind the scenes with economic influences, but accounting conventions may simply leave longer-lived investments marked at their initial cost for some time or with only modest adjustments to such carrying value until known impairments or realization events begin to transpire. Also, because PE funds are not easily marked to market, their returns can appear somewhat smoothed, making them appear more resilient and less correlated with other assets than they really are. The slowness to re-mark them can unfortunately be confused by investors as an overall lack of volatility.