4. You are a public relations (PR) general director of a telecommunication company (e.g., Viva); the CEO Mr. Eduard is asking you to provide him with your 2021 PR plan. Question 4: Write an official email, mentioning the concept of PR from a business perspective and tools that you are going to use during this year to enhance Viva's profitability and reputation. Within the same email, propose two PR models that Viva will implement and the process of each model.