Answer:
c. Using a beta commensurate with the project's risks.
Step-by-step explanation:
As we know that for every kind of project the risk are differents also risk is different so the beta is also different as compared with the beta of the firm, beta of the market etc
So while evaluating a project that contains different level of risk so in this case the third option is appropriate and the same is to be considered
Hence, the c option is correct