There is some water in a bowl, which is on a electronic scales. Mike pours water into the bowl. After pouring $2$ glasses of water, the sacle shows $300$ grams. After pouring a total of $6$ glasses of water, the scale shows $700$ grams. What is the quality of the water at the start? 
选项为:A:$$100$$ g  B:$$150$$ g  C:$$200$$ g  D:$$250$$ g  E:$$275$$ g  请回答其中一个选项.