In the context of selection interviews, which of the following describes the 'halo effect'? A. A tendency for people to make an initial judgement based on first impressions, and then letting this colour their later perceptions. B. An effect whereby the interviewer changes the behaviour of the applicant by suggestion C. A tendency to mentally assign people to a group and then attribute to them the traits assumed to be characteristic of the group as a whole D. An effect whereby the interviewer attributes to the applicant beliefs, attitudes or feelings which he has himself