NO.PZ2022120701000047
问题如下：
The effectiveness of a board chair is best evaluated by:选项：
A.engaging in direct dialogue with directors.
B.referring to a board self-assessment report.
C.assessing the quality of the directors on the board.
解释：
The quality of the directors on the board provides an indirect but otherwise clear signal of the chair’s effectiveness, as strong board members are unlikely to stay on a board led by a weak chair The other evaluation approaches can be used, but they are considered less likely to provide accurate assessments of the chair’s effectiveness为什么不是A和B啊？
