Which of the following statements is supported by the passage

A．If the pleasurable taste of whisky leads to an acquired taste for brandy, then stimulus generalization has occurred.
B．Slapping a child for misbehaving may over time encourage him to repeat his misbehavior.
C．If a person has learned to drink under two sets of conditions, both must be present in order to induce him to drink.
D．The troubles experienced by alcoholics as a result of their alcoholism tend to encourage them to abstain from drinking.