使用T2000ForUnix时，要求先登录Solaris系统，这时使用的系统用户名是（），密码是（）。

Which of the following statements concerning the persistence of pricing anomalies is least likely to be correct（）

A. A lack of liquidity may cause transactions costs to exceed the profit potential of the anomaly.

B. Trading restrictions may preclude the establishment of the positions required to exploit an anomaly.

C. The capital required to exploit an anomaly is often not available.