As an employee of Coca-Cola you need to evaluate and communicate the results of your time-series analysis to the board of directors. They want to communicate to shareholders what the estimated annual dividend rate for CocaCola stock will be for 2022. The dividend rate is how much a shareholder in the company will get per share. If someone has 5000 shares in Coca-Cola and the annual dividend rate is $1.10 then that shareholder will get 5000 x $1.10 = $5,500. Coca-Cola has thousands of shareholders with around 70% being institutional investors (e.g. super funds). Some of these shareholders have up to 400,000 shares in Coca-Cola. You collect the data from past figures the company has and run 6 different models (linear, quadratic, exponential, first, second and third order autoregressive). Which model is the best fitting model in this scenario and why