What type of PR do I want to practice

While signing up for a networking website today, I was asked "What type of PR are you interested in?"  I have never really thought about what type of PR I would like to practice upon graduation.  I mean, I think I would prefer an agency setting over the corporate setting because of the variation of clientele and the ability to work with so many different people.  

The question has kind of stumped me and I am really going to start thinking about it a lot more as I get closer to graduation..