Captain Morgan thinks the following mistakes may have been made in his accounting records: (i) a credit sale was recorded at the wrong value in the sales day book and in the receivables ledger (ii) a cheque issued to a credit supplier was debited to the purchases account. The credit entry was made correctly. Which of the mistakes will be revealed by extracting a trial balance? a. (i) only b. both (i) and (ii) C. (ii) only d. neither (i) nor (ii)