One of Your Project Owners Is Struggling with Reporting and Sorting

One of your project owners is struggling with reporting and sorting issues in her project. Currently, the classification of the issues is no more useful than a list of things that need to be done. The project owners would like to establish the following: more classification of issues, so issues can belong to several classes the ability to edit classes a way to link a class to an owner How would you help this project owner improve issue reporting and sorting?

A) Add a custom field of type Select List (multiple choices) for class, linked to a class-owner field.
B) Ensure the component field is available in the project and demonstrate how to use it.
C) Add a new labels field for the project, with labels containing the owner names.
D) Add a custom field of type Select List (cascading) with classes in the first tier and owners in the second tier.
E) Add a custom field of type Select List (multiple choices) for class, naming an owner in the options.