5. Which one of the following errors will not be picked up by a trial balance? A. An error where debit and credit are posted to the wrong accounts. B. An error in adding up an account, so producing the wrong balance. C. Posting a transaction so that only one side of the entry is posted. D. Posting a transaction so that both entries are debits. (1 mark) 5.a For any TWO of the suggested answers, explain why the item described would be considered an error, for the benefit of someone who has just started to learn about bookkeeping. (4 marks)