56. Unfair competition: refers to the behavior of the operator in violation of the provisions of the Anti-Unfair Competition Act, damaging the legitimate rights and interests of other operators, and disrupting the social and economic order. The so-called operator refers to a legal person engaged in commodity business or profit-making services. According to the above definitions, which of the following is unfair competition? ['Inferior wine produced by an underground factory is sold under the brand name brand.', 'A factory adopts advanced technology, lowers costs and lowers prices to occupy a favorable market position.', "ses spies to steal peers' trade secrets in order to prepare a competitive strategy first.", 'Microsoft sells its browser bundled with the Windows operating system.']