By Pairing Saccharin-Flavored Water with an Injection of an Immune-Suppressing

Multiple Choice

By pairing saccharin-flavored water with an injection of an immune-suppressing drug, Ader demonstrated

A) that the immune system was resistant to conditioning
B) that only re-administration of the US could produce immune suppression
C) that a truly random control group was needed to demonstrate backward conditioning
D) that the immune system could be classically conditioned