Question:Which of the following are true about PhoneStateIntentReceiver.notifyPhoneCallState? 

A notifyPhoneCallState has to be called if your application wishes to receive a notification about an incoming phone call. 

B notifyPhoneCallState is a call back function that is called when the call state changes. 

C notifyPhoneCallState is called to initiate a call from the device. 

D notifyPhoneCallState is used to send notifications about call states. 

E notifyPhoneCallState gets called when the device receives an incoming phone call. 

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