I'll give you a question, please answer with step-by-step reasoning process.
He turned off his phone to avoid every single call, all anybody was going to hear from him today was his what?\nOptions:\n- office\n- answering machine\n- voice mail\n- telephonelines\n- message

voice mail
Call goes to voice mail when it is not answered.

A call cannot be answered when the phone is switched off.

Voice mail contains recorded messages.

.

So, the final answer is voice mail