What is the return type of the main() method, the entry point of Java program? O a String array O b. String Oc. None of the other answers O d. int strObj [ ] NumClass = new strobj ( String_Name); Given the valid statement above, which of the following is correct? O a. String_Name is a number. O b. NumClass is a class. O c. None of the other answers O d. strObj is an object. 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 All of the other answers O b. EFG a = new ABCU); OC. XYZ b = new ABCO: O d. EFG C = new XYZ(); 40+ 0.23>=40.23 What is the data type of the expression value above? O a boolean Ob. None of the other answers O c. int O d. String