A retail customer has a database application that is accessed by a large number of people through a web interface from multiple remote locations. Which of the following questions will provide the information necessary to design the best performing storage solution?（）

• A、How many web servers will be connected to the database?
• B、How many concurrent applications will run against the database? 
• C、How many concurrent users will be accessing the database? 
• D、What are the types of transactions run against the database?