Communication plays a (1) ________ role in the overall development of man. It can be learnt by our (2) _________ efforts. Today, success in our professional life depends on our (3) ________ to read, write and speak well which results in effective communication. Barriers (4) ________ communication hinder the communication process. It is very important to (5) ________ these barriers so that the transmission of the message can be smooth.