The correction is C.
One of the major factors that determine the quality of a printer is the resolution of that printer. The resolution is also called DPI [Dots Per Inch]. The DPI refers to amount of ink that an inkjet printer can place in a one inch line of a printed document. The higher the DPI of a printer, the higher the resolution.
        
                    
             
        
        
        
Communication comes in lots of types, therefore, it also has lots of goals and purposes. One of the purpose of communication is to satisfy instrument goals. Instrument goals here refers to the goal that focuses on convincing others to act in an appropriate way. This is most applicable in situations when someone had to deal with others. 
        
                    
             
        
        
        
Shut down your computer and try again.