Unfair competition: An enterprise uses improper or unfair means to increase the market share of its products, creating an unfair market environment for competitors producing similar products, and seriously harming the interests of its competitors. By definition, Which of the following behaviors are not unfair competition:. ['Microsoft bundles IE viewers in its operating system. Users also purchase IE viewers when they buy the operating system, resulting in a large number of users no longer buying additional browsers from competitors Netscape.', 'In the 1980s, IBM invested a lot of money in the development of key technologies for supercomputers. After successful application for patents, IBM in the 1990s overwhelmed the field of supercomputers.', "h C. A and B companies produce weight-loss medicines. In order to expand market share and increase sales profits, A company advertised on TV stations and some newspapers, pointing out the shortcomings and side effects of company B's drugs, which led consumers to refuse to buy company B's products.", 'In order to compete with Company B for market share, D. A produced a movie advertisement showing that a fighter with the emblem A dropped a heavy bomb on the warship (labeled B).']