Thực hiện phép tính: $80508 - 4936$

A. $\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{\,4025}\\{98}\end{array}}\\\hline{\,\,\,\,3045}\end{array}$            

B. $\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{4025}\\{\,\,\,\,\,9\,\,\,8\,\,}\end{array}}\\\hline{\,\,\,\,3117}\end{array}$

C. $\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{\,4025}\\{\,\,\,\,\,\,98}\end{array}}\\\hline{\,\,\,\,\,3927}\end{array}$

D.$\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{\,4025}\\{\,\,\,\,\,\,98}\end{array}}\\\hline{\,\,\,\,3937}\end{array}$

A. $x = 3279$

B. $x = 3389$

C. $x = 4879$

D. $x = 8911$