Accounting or Marketing Internship?

I am an accounting major and I'll be entering my junior year this coming fall. I have the possibility of getting an internship with a small CPA firm (basically an accountant who has his own office). I also have the possibility of getting a marketing internship with L'Occitane, which is an actual company and I'll be working in a city. It is a cosmetic brand with many stores. The HR person said this position also involves some excel--numbers & formulas (I think I might be dealing with sales figures, but I'm not sure). I'm having trouble deciding which one to go with because while one is related to my major and would give me accounting experience, the other is with an actual company and I would have more opportunities to network, but I would be getting experience in a different area. Both would be unpaid.