1.) Business Engineering or Manufacturing :) 
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Antivirus software, or anti-virus software, also known as anti-malware, is a computer program used to prevent, detect, and remove malware. Antivirus software was originally developed to detect and remove computer viruses, hence the name.
        
                    
             
        
        
        
Answer:
112
Explanation:
Since computer C's performance is 4 times faster, naturally I'd multiply 28 by 4.