A、Whether to go to university. B、Which university she will go to. C、How to pay for her tuition fee. D、What major to study at uni

M：Serena, you look a little bad. What’s the matter?
W：I still can’t decide what I’m going to do next year.
M：You’re going to study art, aren’t you?
W：That was the plan. But my parents aren’t happy about it. They think I should study something more useful. You know, business studies or marketing.
M：Listen, Serena, you shouldn’t let them decide for you. It’s your future, not theirs.
W：I know, but they have to pay for it all.
Question：What does Serena argue with her parents?