Pavlov's Research Demonstrated That ________

Multiple Choice

Pavlov's research demonstrated that ________.

A) involuntary reaction (salivation) could occur in response to an unrelated stimulus (sound of a metronome)
B) an unrelated stimulus (salivation) could occur in response to an involuntary reaction (sound of a metronome)
C) involuntary reaction (sound of a metronome) could occur in response to an unrelated stimulus (food)
D) an unrelated stimulus (food) could occur in response to an unrelated stimulus (barking)