Targeted sales: refers to the marketing method that a merchant sells to a specific customer at a price lower than similar products in the market for a specific purpose. Which of the following are targeted sales? ['In order to raise awareness and attract car buyers, a certain auto city decided to give doctors and teachers a discount of 20,000 yuan on the day of opening, which is much cheaper than many 4S stores.', 'In order to celebrate the tenth anniversary of the establishment of the company, the board of directors of a company decided to distribute souvenirs to employees. After consulting with a leather goods manufacturer, they purchased a batch of stylish, high-end leather bags at preferential prices.', 'In order to avoid waste, a fresh food store stipulates that after 8pm every day, all non-frozen fresh fish and fresh meat products are sold at 50% off.', 'In order to realize the first quarter sales performance of a food production company, it launched promotional activities at the same time online and offline at low prices in the industry, and the sales volume increased significantly.']