The speaker ______ have criticized the paraprofessionals, knowing full well that they were seated in the audience.

A．should not to

B．must not

C．ought not to

D．may not

下列有关增加股东财富的表述中，正确的是（）。

A．收入是增加股东财富的因素，成本费用是减少股东财富的因素

B．股东财富的增加可以用股东权益的市场价值来衡量

C．多余现金用于再投资有利于增加股东财富

D．提高股利支付率，有助于增加股东财富