Rationalism defends the idea that knowledge that is obtained through the senses lack certainty, because senses often deceive us; for example, a stick put in water seems to us as if it is bend, even though in reality it is not bend. Further, the knowledge gained from sense experience is based on inductive inference, which is a generalization that is based on our past experiences. That is, our knowledge is induced form particular experiences we have had in the past, and because the future does not have to resemble the past these generalizations are not trust worthy.are Thus, our knowledge based on sense experiences can only give us probabilistic knowledge, which could or could not be true in future experiences. In other words, knowledge based on sense experience lacks certainty. The correct answer is E.