What is a stub? a main function that tests your class methods a very short tail on a cat or dog an incomplete or fake method that enables you to start testing a class before you completed the development of the class a test program used to test method code QUESTION 2 To implement an ADT from the implementation-independent specifications of the ADT's operations, you.... choose a data structure to conain the data declare a class in a header file ADT operations should be public ADT data attributes are typically private implement the methods in an implementation file choose a data structure to conain the data declare a class in a header file ADT operations should be private ADT data attributes are typically public implement the methods in an implementation file choose a data structure to conain the data declare a class and define the implementation in a header file ADT operations should be public ADT data attributes are typically private write a client program in an implementation file the data structure to conain the data will be chosen by the client of the ADT declare a class in a header file ADT operations should be public ADT data attributes are typically private implement the methods in an implementation file