The municipal government's bidding policy for post-earthquake restoration and reconstruction is that the lowest bidder can win the bid. Some people believe that if this policy is implemented, some successful bidders will cut corners and cut materials, resulting in poor project quality. This will not only lead to additional construction investment consequences, but also endanger People's lives are safe. If we want to eradicate the "tofu project", we must change this wrong policy. Which of the following statements is true and would most effectively weaken the argument? ['Demand for reconstruction of damaged buildings can provide many employment opportunities for residents of the city.', 'Construction contracts in the city rarely specify construction material quality and employment requirements.', 'The policy also includes: those tenders that meet strict quality standards. Only qualified construction companies can bid.', 'If the building design is flawed, even buildings built using the best building materials and first-class engineering quality are dangerous.']