A farmer harvests 240 bags of maize from a 6-hectare farm in one season. If the market price per bag is ₦8,500 and the total cost of production is ₦620,000, what is the farmer's profit for that season?

Total revenue = 240 × ₦8,500 = ₦2,040,000. Profit = Total revenue − Total cost = ₦2,040,000 − ₦620,000 = ₦1,420,000. Option A results from subtracting an incorrect cost, option C is the gross revenue without deducting costs, and option D arises from a common arithmetic error.