Select two stock series and download daily data for the calendar year Dec 30, 2019, through Dec 31, 2020, from yahoo finance, construct a set of continuously compounded returns, and subdivide the data into two subsamples to analyze the forecasting performance of your model. Then using the first subsample, perform a time-series analysis of these returns. The analysis should include

(c) An estimation of the model that you feel most appropriate given the results that you found from the previous two parts of the question.