Final answer:
Sustainable competitive advantage is the correct answer as it refers to operating in successful ways that are difficult to imitate. This means that a company has developed unique strategies, resources, or capabilities that give them a lasting advantage over their competitors.
Step-by-step explanation:
Sustainable competitive advantage is the correct answer. Operating in successful ways that are difficult to imitate is a key characteristic of sustainable competitive advantage in business. This means that a company has developed unique strategies, resources, or capabilities that give them a lasting advantage over their competitors. For example, a company may have a patented invention, a popular brand name, or a reputation for consistently lower prices.