What Modification Should Be Made to an Application's Manifest File

Multiple Choice

What modification should be made to an application's manifest file to enable AdMob ads?

A) Add android.persmission.INTERNET only.
B) Add required permissions and the activity com.google.ads.AdActivity.
C) Add required permissions and a service tag <adMobService> to create an Ads service
D) Add <receiver> tag to enable a Broadcast receiver in the application.