Regarding the Timing of the CS and the US in Classical

Multiple Choice

Regarding the timing of the CS and the US in classical conditioning, the STRONGEST conditioned response occurs when the

A) CS and US are presented simultaneously.
B) CS is presented first and remains on during the presentation of the US.
C) CS is presented first and is terminated before the presentation of the US.
D) US is presented first and is terminated before the presentation of the CS.
E) US is presented first and remains on during the presentation of the CS.