If you get a liberal arts degree in America, you really should be BSing all your papers. If you have to put in effort, college isn't for you. Go be a welder or something. You'll make more money anyway.
Have you taken a liberal arts class? Beyond, say, the 100 level or whatever it is called in the United States?
I have a BA in political science which I never put any effort into getting. Towards the end, I took some graduate level classes in politics and history just to try to challenge myself. They were not noticeably harder, except that you would have to BS 10 page papers rather than BS 5 page papers. I am not bragging, this is the experience of every semi-smart person I've ever talked to who got a degree in politics/English/philosophy/anthropology in the United States. Maybe it's harder in Europe.