A list of sources you looked at while writing a paper
The answer is B. an increase in the power of the federal government over the United States.
The answer is neutral stimulus- the needle itself. In
classical conditioning, when used together with an unconditioned stimulus, the
neutral stimulus becomes a conditioned stimulus. Neutral stimuli become
associated with a psychologically significant event. A neutral stimulus is a
stimulus which initially produces no specific response other than focusing
attention.