Rescorla's Cognitive Model of Conditioning Does NOT Explain Why

Multiple Choice

Rescorla's cognitive model of conditioning does NOT explain why:

A) a conditioned stimulus that occurs before the unconditioned stimulus is optimal for learning
B) a delay between the conditioned stimulus and the unconditioned stimulus is optimal for learning
C) evolutionarily significant conditioned stimuli are easier to condition
D) the conditioned stimulus needs to be a good predictor of the unconditioned stimulus