Which Example Illustrates a Research Study in Which There Was

Multiple Choice

Which example illustrates a research study in which there was potential harm to the researcher?

A) Bruce Johnson and associates' research on violence
B) John Monahan's study of heroin users in New York, where participants were gathered by word of mouth among addicts
C) Reuter, MacCoun, and Murphy's study using probation records to identify drug dealers
D) Reuter and associates study of drug addicts