Display of price list must be at:

The correct answer is Conspicuous place at sale point. This is a foundational concept in consumer protection laws, ensuring transparency and fair trade practices. Consumers have a right to easily access price information before making a purchase decision. Displaying prices conspicuously at the point of sale prevents hidden costs and allows for informed choices.

• Warehouse and Back office are incorrect because these locations are not accessible to the general public or consumers at the point of sale, thus defeating the purpose of price transparency.
• Government office is also incorrect as it has no direct relevance to displaying prices for goods sold by private businesses. Price lists must be visible where transactions occur.