Hello thepostingboard,
Just so that I understand correctly, it looks like the csv file you have provided has three different categories, and within those categories are multiple options.
So a 'contact' would have all three of those categories, and within each, a number of different options can be selected. Is this correct?
Before you import your CSV file, we should figure out what functionality you hope to emulate in Method that utilizes the categorization. Maybe then we can figure out a solution for you. Could you tell us how you use the different levels of categorization now and where you find it the most useful?
In the meantime, Contacts do have 'tags' that could be useful. You will find an article about tags in our Help Center. Maybe this could be part of a solution.