Answer:
C. an example of open-source software.
Explanation:
open-source software is the type of software in which anyone can access, it can also be shared And modified by anyone simply because ita accessible to the public.
Hence and open source software's source code can be 
inspected, enhanced and modified by anyone. A typical example is Linux.
 
        
             
        
        
        
Answer: 
A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming. A prototype is generally used to evaluate a new design to enhance precision by system analysts and users.
Explanation: The place that made prototype was Radical Entertainment.
Hoped this helped.
 
        
             
        
        
        
Answer:
a . chart area 
This describes what is charted. It can be placed above or below the chart.
Explanation:
 
        
             
        
        
        
Edit your profile, click preferences, and then there should be a drop down that has your level on it which you can change.