[Hoi Polloi]

One of the great things about undergrad is that you can explore different things. In fact, the well-rounded education many still extole can only be attained by playing the field as it were. So, I would encourage you to go into the thing with the idea that you are going to play the field and that you needn't decide before entering where the exit is. Getting more than a piece of paper may really point to what you take away from it rather than a "useful" major.

Also, many professors will be more than willing to engage in discussions with you about opportunities, possibilities, etc.

So, rather than trying to figure it out now. Let the process of deciding what direction to take your education be part of the education process. In some sense, it cannot be any other way.

Good luck.