下列有关单项水质因子评价方法的表述，正确的有( )。

A．一般采用标准指数法进行单项水质因子的评价

B．常用该法评价的水质因子有DO和pH值等

C．水质参数的标准指数>1，则说明其已超过了规定的水质标准

D．水质参数的标准指数≤1，则说明其已超过了规定的水质标准

Zafar is a partner of the firm Elixir Traders, which has been supplying cotton to textile manufacturers for the past decade. Last month, a casual vacancy occurred on the board of directors (‘Board’) of Fine Textile Limited (‘FTL’) a public unlisted company. Zafar, who has been well-known to the other members of the Board, was appointed to fill the vacancy. Last week, during a meeting of the Board (‘Board Meeting’), the matter of purchasing cotton from Elixir Traders was discussed. The Board resolved to purchase cotton from Elixir Traders. Zafar voted in favour of the resolution. Now, a shareholder of FTL has objected that Zafar has unlawfully influenced the matter to benefit his own firm and that he should not have been present at the Board Meeting.Required:Under the Companies Ordinance, 1984, advise Zafar on the validity of the shareholder’s objections, and the consequences for Zafar of the proceedings at the Board Meeting. (10 marks)