1.the diaphragm. hope it helps
Um, isn't it obvious? Get new shoes, duh.
The correct answer is interpersonal.
The term interpersonal communication refers to the communication between at least two people. It basically includes the interaction of a person with another person or a small group of people.
Intrapersonal communication refers to the communication with oneself. Small group communication refers to the interaction between three or more people, in the context of sharing ideas and experiences and solving problems. Public communication refers to presenting a message to another group in a formal way.
