Please help

You have put together data on the number of personal computers sold quarterly over the last 7 years (2001-2007). The estimated trend model is y = 10 +3* t -.05 * t2 where the first quarter of 2001 is coded as 1, the second quarter of 2001 is coded as 2 and soon. You observed seasonality in the data and have seasonal indexes of 0.95, 0.98, 0.91, and 1.16 corresponding to each quarter respectively. What is the most appropriate forecasted value of computer sales for the fourth quarter of 2008? Use "Formula Sheet Fall 2020" if necessary. Select one: O a. 30.800 O b. 54.800 O c. 63.568 O d. 35.728 O e. 46.224