Portfolio in panel interview?

I have a portfolio that I am going to bringing to my interview. Should I prepare multiple portfolios since multiple people will be interviewing me? How many? Or is just one good enough?
Thanks
Give everyone portfolios and everyone will just be flipping through them willly-nilly and not pay attention to you.Control the presentation. Either one copy that you control & flip the pages, or one for you & one for them so you can explain the contents to them while they all look at the same page at the same time