Which of the following is a solution of $$\begin{cases}x-3=0 \textbackslash\textbackslash{} 3x-2y=7 \end{cases}$$? 
选项为:A:($x$,$y$)=($3$,$-1$)  B:($x$,$y$)=($3$,$1$)  C:($x$,$y$)=($-3$,$1$)  D:($x$,$y$)=($-3$,$-1$)  请回答其中一个选项.