Police Are Looking for Trevor Brown,a Suspect in a Murder

Police are looking for Trevor Brown,a suspect in a murder.Detective Lewis obtains Trevor's cell phone number from an informant and calls him.When Trevor receives the call,the detective immediately beings asking questions about the evening of the murder.Detective Lewis does not have to read Trevor his Miranda rights because:

A) Detective Lewis was not asking about the murder,just about the evening of the murder.
B) Trevor is wealthy and does not need an attorney provided to him by the state.
C) reading Miranda rights is not required in murder cases.
D) Trevor Brown is not in Detective Lewis' custody.