A hotel wants to modernize their legacy systems so that customers can make reservations through a mobile app. What's the benefit of using an application program...

A hotel wants to modernize their legacy systems so that customers can make reservations through a mobile app.
What's the benefit of using an application programming interface (API) to do this?

A. They do not have to develop the end-user application B. They can deprecate their legacy systems C. They can transform their systems to be cloud-native D. They do not have to rewrite the legacy system