Production manager: The building materials that we produce meet industry safety codes but pose some safety risk. Since we have recently developed the technology to make a safer version of our product, we should stop producing our current product and sell only the safer version in order to protect public safety. Sales manager: If we stop selling our current product, we will have no money to develop and promote the safer product. We need to continue to sell the less-safe product in order to be in a position to market the safer product successfully. Which one of the following principles, if established, most helps to justify the production manager's conclusion? ['In order to make building materials safer, companies should continually research new technologies whether or not they are required to do so in order to comply with safety codes.', 'Companies should not sell a product that poses safety risks if they are technologically capable of producing a safer version of that product.', 'Product safety codes should be reviewed whenever an industry replaces one version of a product with a technologically more advanced version of that product.', 'That a product does not meet industry safety codes should be taken as sufficient indication that the product poses some safety risks.']