6. Consider a system in which an ester is hydrolyzed in a base catalyzed hydrolysis using potassium hydroxide as the base. After the reaction, what will happen theoretically concerning the acidity of the reaction mixture when compared to the beginning of the reaction? (A) The mixture will become more basic compared to the beginning. (B) The mixture will become more acidic compared to the beginning. (C) The acidity of the reaction mixture will not change. (D) The concept of acidity cannot be applied to organic system. (E) The exact situations depend on the actual structure of the ester.