This computer science problem involves algorithmic thinking and programming concepts. The solution below explains the approach, logic, and implementation step by step.
ScanSolve AI Answer
The correct option is Define the app layout and design. In Android app development, XML (Extensible Markup Language) is primarily used to define the user interface (UI) layout. Layout files written in XML describe the structure of the UI elements, such as buttons, text views, and image views, and how they are arranged on the screen. The final answer is Define the app layout and design