Asolution of starch at room temperature does not readily decompose to form a solution of simple sugars because a) the starch solution has less free energy than the sugar solution. b) the hydrolysis of starch to sugar is endergonic. c) the activation energy barrier for this reaction cannot easily be surmounted at room temperature. d) starch cannot be hydrolyzed in the presence of so much water. e) starch hydrolysis is nonspontaneous.