75 The so-called restrictive competition refers to the behavior of the government and its departments, public enterprises or other operators who have an exclusive status in accordance with the law to prevent or even completely prevent or exclude market players from competing. According to the above definitions, Which of the following are restrictions on the competition:. ['A toy factory claims that stuffed toys produced by another toy factory in the city are filled with "black heart cotton", which is purely fabricated after investigation.', "A city's quality supervision and management authority recommended a certain brand of phone, and pointed out that the quality of the phone produced by several manufacturers was problematic, and asked all units not to buy.", "A user of a city's power company requires that users who replace the meter must use the meters produced by their designated manufacturers.", "A city's consumer association recommends consumers to buy a health product, but does not receive any compensation."]