Research on Inmates Placed in Solitary Confinement Suggests That They

Research on inmates placed in solitary confinement suggests that they experience more psychological symptoms, especially mood and anxiety problems, than other inmates. However, this finding may be difficult to interpret because some inmates may be more emotionally maladjusted to begin with. Which of the six principles of scientific thinking does this research finding fit into?

A) Extraordinary claims
B) Replicability
C) Occam's Razor
D) Ruling out rival hypotheses