A Notice Was Received from Mary,who Is a Customer,that She

A notice was received from Mary,who is a customer,that she was bankrupt.The entry to write-off her balance of $1,250 would be:

A) $\begin{array} { | c | l | } \hline \text { Allowance for Doubtful Accounts } & 1,250 \\\hline \text { Accounts Receivable/Mary } & 1,250 \\\hline\end{array}$
B) $\begin{array} { | c | l | } \hline \text { Accounts Receivable/Mary } & 1,250 \\\hline \text { Bad Debt Expense } & 1,250 \\\hline\end{array}$
C) $\begin{array}{|l|lll|} \hline \text { Bad Debt Expense } & 1,250\\\hline \text { Allowance for Doubtful Accounts } & 1,250\\\hline \end{array}$

D) None of the above