Which of the following statement is correct about cost benefit analysis? O A. In order for costs and benefits to be compared, they must typically be converted to common unts but not converted to the same point in time OB, Costs and benefits must be put into common unts (such as dolars) at they are to be compared oc. In general, it an action increases a firm's value by providing benefits with a vaikse greater than any costs involved, then that action is not good for the firm's investors OD. A financial manager's decisions should provide benefits to the tem without incurring any costs