The correct answer is He should turn on the light before he drops the food into the tank.
Classical conditioning is a type of learning in which an organism learns to transfer a natural response to a stimulus, to another initially neutral stimulus, which then becomes conditioned. This process occurs through the association between the two stimuli (unconditioned and neutral).
For classical conditioning to be generated, the neutral stimulus must be presented first and a few seconds later the unconditioned stimulus (the process must be repeated several times), so that there can be an association.
Another concept is reinforcement, which means pairing followed by conditioned and unconditioned stimuli, which, if not done, tends to decrease conditioned responses and may lead to extinction, that is, until they disappear.
Imaginary war is a psychological warfare but in the brink of using nuclear warfare such as what happened during the cold war. They stopped using massive soldiers and be taken to alliance countries. The political benefit is power although they are just giving words it's already in the thin line of instigation. However, this created a negative impact on the people that anytime they are not sure if they would still live or not.
By using the constitution to check the laws made by them are constitutional or not