Which of the following is a complete description of the process involved in creating a valid index in Cram?

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Which of the following is a complete description of the process involved in creating a valid index in Cram?

A. Create a new Index class containing the index attributes and add a named association between this class and the target Entity class
B. Create a new Struct class containing the index attributes and add a named association with stereotype index between it and the target entity class
C. Create a new Entity class with an attribute of stereotype index and add an association with stereotype index between it and the target Entity class
D. Create a new Association class with an attribute of stereotype index and add an association between it and the target Entity class