To answer this question, you need to understand how to expose private data to other applications in the context of mobile app development.
Option A) Central Provider - This option is incorrect because there is no concept called "Central Provider" in the context of exposing private data to other applications.
Option B) Content Provider - This option is correct because a Content Provider is a component in Android that allows you to share data between different applications. It provides a standardized interface for other applications to access and modify the private data of an application. By using a Content Provider, you can control the access and permissions for other applications to interact with your app's data.
Option C) Data Provider - This option is incorrect because there is no specific concept called "Data Provider" in the context of exposing private data to other applications.
Option D) None of the above - This option is incorrect because the correct answer is Option B, Content Provider.
The correct answer is B) Content Provider. This option is correct because a Content Provider is used to expose private data to other applications in Android development.