A cheque written for $$86\mathrm{.}30$ in payment of an account was recorded on the books as $$68\mathrm{.}30.$ On a bank reconciliation, this will appear as a$($n$)$:

A$)$ addition to the bank balance for $$18.$

B$)$ deduction from the bank balance for $$18.$

addition to the book balance for $$18.$

deduction from the book balance for $$18.$