When deliberating on whether to use the real or anonymous case identities:

A. it is most desirable to disclose both, but it is not relevant whether you use the informant's names (they did sign the non-disclosure and do no harm documents) B. it is most desirable to disclose both, but if the case is controversial or the final report may affect the subsequent actions of those studied, consider anonymity C. it is most desirable to disguise the participants because that data can be presented passionately regardless D. it is most desirable to disguise the participants because most case studies are trying to portray an 'ideal type'