You want to create a singleton class by using the Singleton design pattern. Which two statements enforce the singleton nature of the design? (Choose two.) 

Answer options:

A. Make the class static.
B. Make the constructor private.
C. Override equals() and hashCode() methods of the java.lang.Object class.
D. Use a public reference to point to the single instance.
E. Implement the Serializable interface.
F. Make the single instance created static and final.

BF