Mallotech portrays itself to the public as a socially responsible company, but critics charge that employees in many of its factories work in unsanitary conditions. Unless these critics are mistaken, then, Mallotech is not accurately portraying itself to the public. The argument's conclusion follows logically if which one of the following is assumed? ['A socially responsible company would never lie about whether its employees are working in unsanitary conditions.', 'A socially responsible company would not have employees working in unsanitary conditions.', 'No company that conceals information from the public is socially responsible.', "Many employees in Mallotech's factories work in unsanitary conditions."]