Which of the Following Statements Is Correct

Which of the following statements is correct?

A) Prior to the Black-Scholes formula, most economists and practitioners anticipated that mathematical formulas could be derived that could accurately price financial securities such as options.
B) Without the Black-Scholes formula, the job of corporate managers would be very different: many corporations would bear much less risk than they now do.
C) The most important factors contributing to the huge growth in the types of financial securities that are available today are the techniques that everyone uses to discount them.
D) It is not an exaggeration to say that the techniques developed by Black, Scholes, and Merton to value options changed the course of financial economics and gave birth to a new profession: financial engineering.