Concept:Sales promotion tools are short-term incentives used to increase sales; publicity is not one of these direct selling tools.Explanation:Free samples are small amounts given to consumers to try a product.Competitions attract customers by offering chances to win prizes.Exhibitions provide a platform to display and demonstrate products.Publicity is media exposure or public relations activity, not a direct sales promotion tool.Hence, the correct choice is the activity that is not designed for immediate sale stimulation.Answer:A. publicity