Explanation:

• Option A is incorrect because price multiples are widely used due to their ease of calculation.
• Option B is incorrect because a key advantage of price multiples is their ability to facilitate relative comparisons, both cross-sectionally (against peers or the market) and over time.
• Option C is correct because variations in accounting methods and reporting standards across markets can lead to discrepancies in financial metrics (e.g., revenues, earnings, book values, and cash flows), making comparisons unreliable.