Poor telephone connection during the process of communication is an example of which of the following communication barrier?

Noise

Noise means some obstruction or hindrance to communication. This hindrance may be caused to sender, message or receiver. Some examples of noise are: (a) Ambiguous symbols that lead to faulty encoding. (b) A poor telephone connection. (c) An inattentive receiver. (d) Faulty decoding (attaching wrong meanings to message). (e) Prejudices obstructing the poor understanding of message. (f ) Gestures and postures that may distort the message.