Final answer:
The closing stage is where the actual sale is made and the customer agrees to the purchase, while the follow-ups stage concerns post-sale customer interactions.
Step-by-step explanation:
The stage of the selling process that deals with the actual point of sale where the customer agrees to buy is known as the closing stage. This is when all the preceding steps of the selling process come to fruition and the salesperson secures the commitment of the customer to make the purchase. On the other hand, the stage that relates to the post-sale interaction with the customer is called the follow-ups stage. This stage is essential for ensuring customer satisfaction, addressing any issues, and building a relationship that could lead to future sales.