If "Outlook" is one of the options then thats the answer.
        
                    
             
        
        
        
is where the term ‘App’ comes from. It is any piece of software that allows us to actually ‘use’ the computer. For example, it may be a word processor, web browser, spreadsheet software or even just a game. Application software relates to the user rather than the hardware
 
        
             
        
        
        
Answer:
the difficulty in factoring large numbers
  a public key that the server and the user’s computer know
  
the use of prime numbers
a private key that only the server knows
Explanation:
ege 2021 
 
        
             
        
        
        
To modulate your voice is to modify or gain more control of your voice. It basically means to change or adjust the pitch or tone.
        
                    
             
        
        
        
Answer:
A. SmartArt
Explanation:
SmartArt is a graphical tool used to visually communicate information.