Answer:
Go on account settings, go to subscription, and upgrade.
Explanation:
 
        
                    
             
        
        
        
Answer:
D. System Analysis 
Explanation:
System analysis can be defined as the process of analysing a problem in order to the know the cause thereby finding a way to resolve it or finding a solution to it.
System analysis enables us to easily study procedure or process thereby identifying what the objective of the procedures is which will in turn help to achieve what we needed to achieve.
System analysis is important because it enables easier identification of a problem which make us to find the best way to solve the problem since it is a problem solving technique which ensures that all problem are been resolved accurately and efficiently 
 
        
             
        
        
        
Answer:
Sentences: 
1.My computer has a virus
2.Technology may take over the world someday 
Explanation:
 
        
                    
             
        
        
        
You will use a <select> for this. For example:
<select name="choice">
  <option>First</option>
  <option>Second</option>
  <option>Third</option>
  <option>Fourth</option>
  <option>Fifth</option>
</select>
        
             
        
        
        
Answer; Electric Paper Display
Explanation:
<em>"PDs are extremely thin and only require power when a new image is requested. Instead of a traditional display that uses backlighting to illuminate pixels, an EPD is based on the scientific phenomena known as "electrophoresis," the movement of electrically charged molecules in an electric field."</em>
Above is the definition, as you can see it resembles your question greatly so this is most likely the answer you're looking for. 
Good luck :D