Well the result shown in C19 will show the sum of all cells from C5 to C18:
ie: C5 + C6+ C7+ C8+ C9+ C10+ C11+ C12+ C13+ C14+ C15+ C16+ C17+ C18
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I guess the answer in the blank is processes.
Activities called processes involve the microprocessor receiving commands as software carries out tasks and while input arrives from the keyboard, mouse, and other devices.
 
        
             
        
        
        
Answer:
The Last option: Dyadic Communication AND Interpersonal Communication
is the correct one.
Explanation:
Communication can be defined as the process in which one may convey his thoughts or inquires about things.
There are many types of communications as listed above.
- Intrapersonal Communication
- Interpersonal Communication
- Dyadic Communication
- Small Group Communication
- Public Communication
- Mass Communication
- Organizational Communication 
- Intercultural Communication.
Under all these, Interpersonal communication and Dyadic communication are the ones that are between two people.
Dyadic communication is the one in which two people relate to exchange thoughts and ideas face-to-face. It is sometimes referred as dialogic relation.
Interpersonal relation can be between two or more than  two persons that may know each other. It is clearly specified in this communication that who listener and speaker are.
<h3>I hope it will help you!</h3>
 
        
                    
             
        
        
        
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