Brad Berrett and Jim Wong are roommates in college. Berrett is an accounting major, and Wong is a finance major. Both recently studied the statement of cash flows in their classes. Wong’s finance professor stated that depreciation is a major source of cash for some companies. Berrett’s accounting professor indicated in class that depreciation cannot be a source of cash because cash is not affected by the recording of depreciation. Berrett and Wong wonder which professor is correct. Explain the positions taken by both professors and indicate which viewpoint you support and why.