After Anna spends $\dfrac{1}{3}$~of her money and loses $\dfrac{1}{2}$~of the remainder, she then has~$\textbackslash$10$ left. She started with． 
选项为:A:$\textbackslash$30$  B:$\textbackslash$45$  C:$\textbackslash$50$  D:$\textbackslash$60$  请回答其中一个选项.