The cost analyst for Sheffer Systems collected the following data concerning direct materials: Assume that Sheffer Systems had no beginning finished goods or direct materials inventory and only produced one product Sheffer sold 28,644 units during the period. Required: a. Assume Sheffer writes off all variances to Cost of Goods Sold. Prepare the entries Sheffer would make to record and close out the variances. b. Assume Sheffer prorates all variances to the appropriate accounts. Prepare the entries Sheffer would make to record and close out the variances. Complete this question by entering your answers in the tabs below. Journal entry worksheet Record the standard cost of materials used and the materials efficiency variance. Note: Enter debits before credits. Complete this question by entering your answers in the tabs below. Assume Sheffer prorates all variances to the appropriate accounts. Prepare the entries Sheffer would make to record and close variances. Note: If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Journal entry worksheet Record the standard cost of materials used and the materials efficiency variance. Note: Enter debitis before credits