"Application programming interface(API)"is the correct answer for the above question.
Explanation:
API is an interface which is used to call the different software in the currently developing software by the developer to inbuilt some task of that software.
The full of this is the Application programming interface. It is an interface or guidelines which are used to tell the other software, that how a particular service is performed.
The above concept is asked by the above question. so the answer is API.