Given these facts about Java types in an application:- Type x is a template for other types in the application.- Type x

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Given these facts about Java types in an application:- Type x is a template for other types in the application.- Type x implements dostuff ().- Type x declares, but does NOT implement doit().- Type y declares doOther() .Which three are true?

A. Type y must be an interface.
B. Type x must be an abstract class.
C. Type y must be an abstract class.
D. Type x could implement or extend from Type y. E. Type x could be an abstract class or an interface. F. Type y could be an abstract class or an interface.