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Given the class name: Test, what is a valid file name for this class? Select from the following options: anyname.java Test.java testclass.java Testclass.java Select all constructs that can have a visibility modifier in java method field constructor a local variable declaration (in a method, for example) You have a class called Statistics that has a (public) method called "average" that takes an array of doubles and returns the average of the array. Suppose you see the following line(s) of code in another file: double arr={4.0,2.3,4.6,1.1}; double avg = Statistics.average(arr); System.out.println("the average is: " + avg); What listed below must be true about the average method? average must be a private method average must be a static method (no instance of the Statistics class) the code won't compile average is being called on an instance of the Statistics class