Identify each of the following statements as either true or false. a. A guideline for saleguarding cash is to separate the duties of those who hive custody of cash from those who koep cash recorchs. b. Good intemal control is to hrve only one employee be assigned the task of opering mail. c. A voucher system of control improves internal control of cash payments. d. A good internal control is to require that all cash receipts be deposited daily. In taking a physical itventory at the end of Vear 1, Grant Compayy forgot to count certain units and understated ending irverntory by $20,000. Determine haw this error effects each of the following