Concept:Economic profit is the difference between total revenue and total economic cost.Explanation:Total revenue from selling 10,000 units is ₦1,000,000.Total economic cost of producing the units is ₦750,000.Economic profit =Total revenue−Total economic cost.Economic profit =1,000,000−750,000=250,000.Since the firm earns more than just enough to cover all costs, this is an economic (or abnormal) profit of ₦250,000.Answer:D. An economic profit of ₦250,000