Why did 2K sell Gearbox?

Could you elaborate on the reasons behind 2K Games' decision to sell Gearbox Software? What factors may have contributed to this move, and how does it impact the future of both companies? Was it a strategic move for 2K to focus on other areas of their business, or was there a financial motivation behind the sale? Additionally, what does this mean for the future of Gearbox and the games they produce, and how will it affect the gaming industry as a whole?