Which of the following describes the Flyweight pattern correctly?

• A. this pattern allows a user to add new functionality to an existing object without altering its structure.
• B. this pattern is used where we need to treat a group of objects in similar way as a single object.
• C. this pattern is primarily used to reduce the number of objects created and to decrease memory footprint and increase performance.
• D. this pattern hides the complexities of the system and provides an interface to the client using which the client can access the system.