4. There are factors that affect subscriber telephoneservices givenvarious access media (copper, fiber, radio waves) and their attendant signal transmission methods. Using the Internet and reporting in your own words: a. Identify and discuss in detail 3 factors that affect PSTN wireline subscriber loops. i. Discuss how each of these 3 factors are mitigated. b. Identify and discuss in detail 3 factors that affect cellphone wireless access. i. Discuss how each of these 3 factors are mitigated. C. Identify and discuss in detail 3 factors that affect satellite telephone communications. i. Discuss how each of these 3 factors are mitigated.