Inflated price method of valuing material issues is suitable when . . . . . . . .

The inflated price method is not suitable when prices are rising or falling. When prices are rising, the inflated price method will result in an overstated cost of goods sold. When prices are falling, the inflated price method will result in an understated cost of goods sold.

Here is a brief explanation of each option:

• Option A: Materials are subject to natural wastage. This is the correct answer. The inflated price method is designed to account for the cost of materials that are wasted during the production process.
• Option B: Prices rise. This is not the correct answer. The inflated price method is not suitable when prices are rising. When prices are rising, the inflated price method will result in an overstated cost of goods sold.
• Option C: Prices fall. This is not the correct answer. The inflated price method is not suitable when prices are falling. When prices are falling, the inflated price method will result in an understated cost of goods sold.
• Option D: None of these. This is not the correct answer. Option A is the correct answer.