Which one of the following factors should be INCLUDED in the cash flows when estimating the relevant cash flows? Select one O a. All sunk costs that have been incurred relating to the project O b. Effects of the project on other divisions of the firm, but only if those effects lower the project's own direct cash flows O C. The investment in working capital required to operate the project, even if that investment will be recovered at the end of the project's life O d. Sunk costs that have been incurred relating to the project, but only if those costs were incurred prior to the current year In evaluating a capital project with a long life, the rate used to discount the cash flows Select one Oa. becomes more significant b becomes less significant c. makes no difference d not enough information to determine