Answer:
The answer is "5 users and 1 block".
Explanation:
In Option a:
Bandwidth total 
Any User Requirement 
The method for calculating the number of approved users also is:
Now, calculate the price of each person for overall bandwidth and demands,


In Option b:



mean user 

max user 

Should be 1’ on each side
Answer:
B And A
Explanation:
B: The controller renders a responce it can be seen as a manager and other parts are its workers and makes sure that other parts are "working" well
Answer:
B and C
Explanation:
B. Create a method that load valid account records from a static resource, then call this method within test method
C. Create a method that creates valid records, then call this method within test methods