Final answer:
Bait and Switch is not considered a legitimate promotional strategy because it is deceptive and dishonest, while Clearance, Closeout, and Liquidation are all legitimate promotional tactics used by sellers.
Step-by-step explanation:
The correct answer is Bait and Switch. Bait and Switch is an unethical practice in which a seller advertises a product at an attractive price to lure customers, but then tries to sell them a different, usually more expensive product. This tactic is not considered a legitimate promotional strategy because it is deceptive and dishonest.
On the other hand, Clearance, Closeout, and Liquidation are all promotional tactics used by sellers. Clearance refers to selling off old stock to make room for new inventory, usually at a discounted price. Closeout is a strategy used to get rid of discontinued or slow-selling products by selling them at significantly reduced prices. Liquidation involves selling off all inventory and assets of a business, often at greatly reduced prices, usually due to bankruptcy or closure.