Which of the following statements are correct with regards to publishing updates of apps on Google Play?

Which of the following statements are correct with regards to publishing updates of apps on Google Play?

Answers:

• The android:versionCode attribute in the manifest file must be incremented and the APK file must be signed with the same private key.

• The android:versionCode attribute in the manifest file must be same and the APK file must be signed with the same private key.

• The android:versionCode attribute in the manifest file must be incremented and the APK file must be signed with the new private key.

• The android:versionCode attribute in the manifest file must be same and the APK file must be signed with the new private key.