Which of the following errors would be detected by a trial balance? 1 The expense Discount Allowed was posted as a credit to Discount Received in the general ledger. The entry to cash was posted correctly II The sales assistant pocketed the cash from a cash sale and did not ring it up on the register III A purchase of inventory on credit was recorded as a debit to the plant and equipment account and a credit to creditors IV A cash sale was recorded in the sales account as $237 instead of $273 but was correctly recorded in the bank account a. 1&iV b. 11&111 c. III only d. IV only e. None of the above