Answer: d. 2.
Step-by-step explanation: the five essentials of conversation are the opening (how the conversation starts), feedforward (the introduction of the topic), business (the purpose of the conversation), feedback (the communication of the understanding of the participants) and closing (how the conversation ends). From the given conversations, the one that has an ineffective feedforward and closing is the conversation 2, because Paul demands and apology from Pat in a rude way (feedforward) and the conversation ends with Paul storming out of the coffee shop (closing).