要求改变命令按钮显示的文字，应当在属性窗口中改变的属性是（）

A.Caption

B.Name

C.Text

D.Label

Which of the following statements about the characteristics of a monopoly and those of an oligopoly is least accurate（）

A. In an oligopoly, there are often substantial economies of scale.

B. In both a monopoly and an oligopoly, there are high entry barriers into the market.

C. In an oligopoly, the decisions of each seller are independent of the policies followed by competitors.