Which of the Following Is Incorrect with Respect to Leverage

Which of the following is incorrect with respect to leverage buyouts (LBOs) ?

A) They originated in the 1960s and were originally known as bootstrap transactions that reflected the general consensus that the firm was, more or less, paying for its own acquisition.
B) The typical LBO uses a ratio of 70 percent debt to 30 percent equity but levels of debt can reach much higher.
C) LBOs are an extreme example of re-leveraging because debt is used to buy out the majority of the equity holders to gain control of the firm.
D) None of these statements is incorrect.