Answer:
4) Ron and his friends meet at the campus café to hash out a plan for their group project.
Step-by-step explanation:
The transactional communication model refers to a process where messages are exchanged between a sender and a receiver where each side takes turns to send or receive. It involves a circular flow of messages and relies on feedback since the original sender later becomes the receiver, and then a sender again, etc.
There is no immediate feedback regarding options 1, 2 and 3, therefore the transactional communication model does not apply to those events.