If a Perfectly Predicts a Medium-Sized US, It Will Block

Multiple Choice

If A perfectly predicts a medium-sized US, it will block B unless the US is increased, and then we can observe unblocking. However, if the organism experiences A and B together with the same moderate US, the larger US will no longer produce unblocking when it is paired with AB. How well does that effect support the Rescorla-Wagner model?

A) This effect is predicted by and strongly supports the Rescorla-Wagner modele.
B) This effect does not support the Rescorla-Wagner model, which predicts that B should become inhibitory.
C) This effect does not support the Rescorla-Wagner model, which predicts that B should be unblocked normally.
D) This effect is predicted by and supports the Rescorla-Wagner model because lambda represents the magnitude of the US and is easily modified.