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This question is about utility classes in the Java Class Library. Select the two correct statements below. Select one or more: When using a utility class static method, it is best style to prefix the method name with the class name. All the methods declared in the utility class system are static. The class variable out in class System is of type InputStream. The class DateFormat is a utility class found in the java.util package. If you execute the statement System.out.println("M250") the value returned is "M250