A Group of Rats Receives 10 CS-Shock Pairings, Along with 5

Multiple Choice

A group of rats receives 10 CS-Shock pairings, along with 5 other shocks at random intervals. A second group only receives the 10 CS-Shock pairings. Which group will show the strongest CR to the CS?

A) The first group, because it has experienced more shocks, further potentiating the responding to the CS
B) The groups will respond more or less the same, as the number of CS-US pairings are the same
C) The second group, showing that the contingency matters
D) The first group, because the CS will block learning about the US when it occurs randomly