_____ Refers to the Possibility That the Association Between Two

_____ refers to the possibility that the association between two variables is driven by their mutual association with another variable, whereas _____ refers to the difficulty in determining which variable influences the other in a correlation.

A) Reverse causality; third variable
B) Third variable; reverse causality
C) Confirmation bias; a priori causal theory
D) A priori causal theory; confirmation bias