Gilda has a bag of marbles. She gives $20 \textbackslash\%$ of them to her friend Pedro. Then Gilda gives $10 \textbackslash\%$ of what is left to another friend, Ebony. Finally, Gilda gives $25 \textbackslash\%$ of what is now left in the bag to her brother Jimmy. What percentage of her original bag of marbles does Gilda have left for herself? (2019 AMC 8, Question \#8) 
选项为:A:$$20$$  B:$33 \frac{1}{3}$  C:$$38$$  D:$$45$$  E:$$54$$  请回答其中一个选项.