Final answer:
The correct answer is d. minimal encouragers. Judy's responses demonstrate her active listening and engagement in the conversation.
Step-by-step explanation:
The correct answer is d. minimal encouragers. When Judy says phrases like 'tell me more' or 'that's interesting; go on,' she is using minimal encouragers. Minimal encouragers are responses that are used to show interest and attentiveness during a conversation. They are used to encourage the speaker to continue sharing their thoughts and feelings. Judy's responses demonstrate her active listening and engagement in the conversation with her friend Bill.