Which Statement About Compound Potentiation Studies Is True

Which statement about compound potentiation studies is true?

A) The observation that distal odor versus proximal taste cues activate noncompeting defense systems cannot explain potentiation.
B) Standard within-compound associations explain why potentiation occurs while overshadowing occurs at other times.
C) Potentiation is unique to taste-odor combinations.
D) Salience differences of cues and their differential susceptibility to potentiation indicates that taste aversion learning is unique, as first suspected.