Please discuss each question completely using a minimum of 150 words in your answer per question. Cite your references using APA style (our book should be one reference). 1. Each historical perspective on motivation built on the earlier perspectives and differed from them in some ways. Describe the similarities and differences between the traditional approach and the human relations approach. Then describe the similarities and differences between the human relations approach and the human resource approach. (minimum of 150 words) 2. Describe some new forms of working arrangements. How do these alternative arrangements increase motivation? (minimum of 150 words) 3. Describe the difference between communication and effective communication. How can a sender verify that a communication was effective? How can a receiver verify that a communication was effective?(minimum of 150 words) 4. Describe the individual and organizational barriers to effective communication. For each barrier, describe one action that a manager could take to reduce the problems caused by that barrier.(minimum of 150 words)