Which of the following features supports multiple constructors in a Java class? O a Overloading O b. Overriding O c. None of the other answers O d. Inheritance Which of the following is valid in Java, if class XYZ is a "directed" superclass of class ABC and class XYZ is also a "directed" subclass of class EFG (suppose they all have no-argument constructors)? O a. XYZ b = new ABCO; O b. All of the other answers EFG a = new ABCO; O d. EFG C = new XYZO; C