Final answer:
The best advice for Labyrinth Inc. is to focus on both effectiveness and efficiency to ensure sustainable growth and adaptability. They should avoid complacency and continue collaboration with suppliers and customers.
Step-by-step explanation:
The best advice for the founders of Labyrinth Inc., a company specializing in organic clothing, is C) To continue their success, they should maintain a clear focus on both effectiveness and efficiency, especially while their company is experiencing such high growth in sales. While efficiency is about doing things in the most economical way, effectiveness is about doing the right things to achieve the desired results. As Labyrinth grows, the founders should continue collaborating with suppliers and customers, as well as seek to balance both efficiency and effectiveness to ensure long-term sustainability and adapt to the changing market needs.