For the first 10 trials rats simply explore a maze, with no reward. For the next ten trials they receive a food reward for going to the goal box. Learning appears to occur as fast for this group as for a group that received 20 consecutive reinforced trials. What was the explanation?
A) Tolman's latent learning
B) Pavlov's classical conditioning
C) Skinner's intermittent reinforcement
D) Thorndike's stamping in