Given the following errors, identify the one by itself that will cause the trial balance to be out of balance. A $340 cash salary payment posted as a $340 debit to Cash and a $340 credit to Salaries Expense. A $240 cash receipt from a customer in payment of her account posted as a $240 debit to Cash and a $24 credit to Accounts Receivable. A $145 cash receipt from a customer in payment of her account posted as a $145 debit to cash and a $145 credit to Cash. A $92 cash purchase of office supplies posted as a $92 debit to Office Equipment and a $92 credit to Cash. An $1, 500 prepayment from a customer for services to be rendered in the future was posted as an $1, 500 debit to Unearned Revenue and an $1, 500 credit to Cash