Inventory turnover calculation lacks closing inventory data Steps:

• Inventory turnover = cost of goods sold (COGS) / average inventory.
• COGS = opening inventory + net purchases - closing inventory = 12,000 + 75,000 - closing inventory.
• Average inventory = (opening inventory + closing inventory) / 2 = (12,000 + closing inventory) / 2.
• Closing inventory is not provided, so COGS and average inventory cannot be determined.

Why C is correct:

• Not applicable; calculation impossible without closing inventory per standard accounting formula.

Why the others are wrong:

• A, B, D: All require complete data to compute; no values fit without assuming missing closing inventory.

Not enough information. Final answer: Not enough information.