Question: How can you change the unique bundle identifier for a mobile build?

1. Select Assets > import Package, and then import the Cross-Platform Input Asset Package
2. Select Windows > Asset Management > Version Control, and then enter an identifier in the Source field
3. Select File > Build Settings. Then from the Build dialog box, select Android or iOS, and select the Bundle Identifier from the Compression Method drop down menu.
4. Select Edit > Project Settings > Player from the menu, and then expand the Other Settings tab

Answer: The correct answer of the above question is Option D:Select Edit > Project Settings > Player from the menu, and then expand the Other Settings tab