Answer:.b. stimulus control.
Explanation:
According to behavioral psychology, stimulus control refers to how an organism tend to change their behavior in the presence of a certain stimuli and return to another behavior in the absence of that stimuli.
Someone uses discriminative stimulus to refine their behaviour in response to a particular stimuli such as when Robert sees the police officer this is a behavior driven by knowing that this is an authority figure and is based on historical reinforcement.
Answer:Roosevelt took office as vice president in 1901 and assumed the presidency at age 42 after McKinley was assassinated the following September. He remains the youngest person to become President of the United States.
Explanation:
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