An empty truck weighs $$2000$$ kg. After the truck was loaded, the freight (that is, the load) made up $$80\textbackslash\%$$ of the weight of the loaded truck. At the first stop one fourth of the freight was unloaded. What percent of the loaded truck\textquotesingle s weight did the freight make up after that? ($$2003$$ Math Kangaroo Problem, Level $$7-8$$, Question \#$$17$$) 
选项为:A:$$20\textbackslash\% $$  B:$$25\textbackslash\%$$  C:$$55\textbackslash\%$$  D:$$ 60\textbackslash\%$$  E:$$75\textbackslash\%$$  请回答其中一个选项.