From the Research on Profiling, the Safest Conclusion to Reach

From the research on profiling, the safest conclusion to reach about the accuracy of profiling would be that:

A) there is no difference between the predictive accuracy of profilers compared to seasoned investigators.
B) profilers do appear to be at least somewhat more accurate than nonprofilers at predicting physical traits of offenders.
C) college students were as successful as profilers at identifying the physical characteristics of sex offenders.
D) there have not been any studies that compared the predictive accuracy of profilers relative to other types of criminal investigators.