AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
(B) Selling adulterated or defective goods to customers
Selling adulterated or defective goods violates the consumer's right to safety and right to be informed — both protected under COPRA. The other options (discounts, bulk offers, advertising) are legitimate trade practices. The source passage notes consumers can seek redressal when goods are defective or sold above MRP, but selling adulterated goods is the clearest example of an unfair trade practice among the given options.