Which of the following cost-saving actions can potentially result in a company gaining a sustainable cost advantage over rivals because the company's actions to cut costs cannot be detected by rivals from the information in either the FIR or the Comparative Competitive Efforts section of the CIR? Making it a company policy never to produce branded footwear with higher than a 3.5-star S/Q rating Actions to use only refurbished production equipment, actions to keeps supervisory costs to a bare minimum, and never spending any money on corporate social responsibility and citizenship o Making it a company policy never to produce branded footwear with higher than a 3.0-star S/Q rating Actions to completely avoid the payment of any import tariffs Actions to underspend rivals on brand advertising