To build a debug APK, you can open a command line and navigate to the root of your project directory. To initiate a debug build, invoke the assembleDebug task:
gradlew assembleDebug
This creates an APK named [module_name]-debug.apk in [project_name]/[module_name]/build/outputs/apk/
Select correct statements about generated file. (Choose all that apply.)
A . The file is already signed with the debug key
B . The file is already aligned with zipalign
C . You can immediately install this file on a device.
Answer: A,B,C
Reference: https://developer.android.com/studio/run