average inventory is computed as a.(inventory at the beginning of the period inventory at the end of the period) ÷ 2. b.(inventory at the beginning of the period inventory at the end of the period) ÷ 365 days. c.(inventory at the beginning of the period − inventory at the end of the period) ÷ 365 days. d.(inventory at the beginning of the period − inventory at the end of the period) ÷ 2.
