It was not the notion that madness was curable that changed at the end of the eighteenth century, for a kind of therapeutic self-confidence ran throughout traditional medicine with its bleeding, purging, and giving of emetics- all designed to cure. rather, it was the notion that institutions themselves could be made curative, that confinement in them, rather than merely removing a nuisance from the vexed family or the aggrieved village elders, could make the patient better. this insight broke in an almost revolutionary way upon the scene. what is the effect of the negative statement ("it was ")? a. it sets the stage for a critique of psychiatry in the eighteenth century b. it introduces a statement about what changed at the end of the eighteenth century c. it sets up a comparison with a later era d. it implies a criticism of psychiatry in an earlier era e. it catches the reader's attention more than a positive statement would