Which of the Following Statements Is Most Correct

Which of the following statements is most correct?

A) One purpose of calculating the WACC is to have a singular cost of capital measure that can be applied to evaluate all of the firm's projects, including those of greater than and lesser than average risks.
B) A firm facing a steep demand curve (that is, high flotation costs) for new equity would likely also face, at some point, a steeply upward sloping WACC curve.
C) A breakpoint is based on the rand value used of a specific type of capital, and occurs at the point where the cost of that capital type increases.Thus, if a firm has R100,000 in earnings, and shareholders want R50,000 of those earnings paid as dividends, then retained earnings will have two breakpoints.
D) Answers a and b are both correct.
E) All of the above are false.