不懂这个问题

问题如下：

Robbin then introduces the Fundamental Law of Active Management to her analysts, illustrating it with a graphic called the "correlation triangle." "This graph explains how a manager's forecasted returns, decisions about the portfolio's active weights, and realized active returns are related to each other," she says.

Wert observes, "That makes sense. It is difficult to add value if the manager's forecasts do not correspond at least somewhat to the realized active returns. Also, if the portfolio manager does not overweight securities for which he has forecasted the best relative returns, he will not generate positive relative returns."

Is Wert correct in her assessment of the Fundamental Law of Active Management?

选项：

A.

No, she is incorrect about the manager's forecasts

B.

Yes

C.

No, she is incorrect about the manager's security weightings

解释：

Both observations are correct. A manager's forecasts must correspond at least somewhat to the realized returns if the manager is to generate a positive relative return (information coefficient), and the manager must overweight securities for which he has forecasted the best relative returns in order to generate positive relative returns (transfer coefficient).