<i>The attitudes and behaviour <i>___most of the residents of slum areas all over the world are unlike those ___</i> characterize the upper strata of society. <br/></i><br/><i><br/>A) which / what <br/>B) which / which <br/>C) that / when <br/>D) that / whom <br/>E) which / where </i><br/><br/>Why A?