When a company evolves beyond its need for an international division, it may be considered a global enterprise. At this stage in its development, it may have any of several organizational structures. In 2017, DiDi overhauled its corporate structure, establishing separate business groups to accelerate growth in the separate product areas of affordable car-hailing services and high-end chauffeur offerings. The company also includes top-level positions organized to handle areas such as safety, compliance, and finance. Which type of organizational structure does DiDi employ?