For a given firm with multiple product lines with multiple major projects, if a projects Delta is different from that of the overall firm, then the: A. CAPM can no longer be used. B. project should be discounted using the overall firm's Deta. C. project should be discounted at a rate that is consistent with the projects own Deta. D. project should be discounted at the market rate. E. project should be discounted at the T-bill rate.