請問這一題B選項為什麼不對？

问题如下：

A company which in the oil & gas industry has 7 members on the board of directors. If the board would like to improve the structure of the board of directors, the company should seek which following skills or experience:

选项：

A.

have all members of the board knowledgeable in the oil and gas industry.

B.

have a balanced number of members of the board for each set of skills.

C.

hire another board member with expertise in ESG issues related to the oil and gas industry.

解释：

C is correct. The board of directors should seek to have at least two individuals with expertise in a particular area. Since the company has only one board member with relevant ESG experience, it should prioritize hiring a new board member experienced in that domain. Since diversity is sought in the structure of boards of directors, not all board members need be knowledgeable in the industry where the company operates. There should be a thoughtful balancing of members’ skill sets, and not all skill sets should be represented proportionally on the board.