To answer the following question, use the "Sparkling Wine" file from the Quiz dataset folder. This is a dataset of monthly Sparkling Wine sales from January 1980 to December 1994. The numbers are in thousands of units sold. Assume a seasonality of 12. For this dataset, please do the following: 1. Create time index t, t-sq, In(sparkling), and 12 dummies (one for each month) and partition the data with validation period size as 12 and rest as training. 2. Run a polynomial trend (order =2) model+ Seasonality (drop April dummy) on the partitioned data. Question: Which of the following numbers represents the correct RMSE of the training period? O 370.52 O 366.98 367.98 380.69