Hmm, this is a tricky one. I'll need to think through the different options and consider the implications of each. The key is to focus on the specific requirements mentioned in the question.
Okay, let me see if I can break this down. Mrs. Carr initially tried to ignore the interruptions, but then gave in when Jack started screaming. That sounds like negative reinforcement to me, so I'm leaning towards D as the answer.
Leslie
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