What is the hardest business major?

I'm curious to know, what is the most challenging business major out there? Is it finance, with its intricate web of numbers and calculations? Or perhaps marketing, where creativity and adaptability are key in an ever-changing landscape? Could it be operations management, navigating the complexities of supply chains and logistics? Or maybe entrepreneurship, where the stakes are high and the road to success is paved with uncertainty? I'm eager to understand which major presents the toughest challenges and why.