Answer:
False 
Explanation:
The maintenance phase of the waterfall model for software development involves making changes to the entire system or some parts of it for improved performance. Integration and testing is the step at which  all units developed at the implementation stage are brought together to form a whole functioning system. At this stage, the system is constantly checked for proper functionality so it can be deployed.
 
        
             
        
        
        
The answer is C ms-dos
Side note: 
GUI means graphical user interface. In other words, that means it looks pretty and has cool buttons, animations and cute stuff. MS-DOS is just a black screen with words on it. Definitely not cute or cool.
        
             
        
        
        
File Tab is your answer
Hope this helps.
        
                    
             
        
        
        
The answer to the question you have asked is <u><em>"B" . </em></u> Because if you really think about it, there is no possible way that "Good" can be a keyword of "Hideous".
 
        
             
        
        
        
Uhhhh meeting code for what