Consider the following to identify the ethical concerns: a) A researcher decides to study an elementary-school classroom. This investigator wants to surprise the teacher and the students and comes in to the class unannounced during a spelling test. Describe the type of ethical issue that arises in this situation. b) What type of ethical issues does collecting e-mail messages introduce in qualitative research? c) A researcher conducts a study of adolescents and their smoking behaviors. In reporting the results, the researcher mentions the names of specific students who are only occasional smokers. What specific ethical issue is presented in this study? d) Ethical issues often arise in collecting qualitative data. Give an example of a situation may raise an ethical issue in qualitative research.