A sugar solution is made by mixing $$10$$ ounces of sugar and $$15$$ ounces of water. Find the percent concentration of the solution. 
选项为:A:$$20\textbackslash\%$$  B:$25\textbackslash\%$  C:$30\textbackslash\%$  D:$40\textbackslash\%$  请回答其中一个选项.