BUSINESS
The correct answer is B. sustainable.
For a business to be successful, it is important for it to have a competitive advantage that is sustainable over time.
A competitive advantage is something that sets a business apart from its competitors and gives it an edge in the market. It could be a unique product or service, a superior production process, a loyal customer base, or any other quality or advantage that helps the business stand out.
In order for a competitive advantage to be effective, it must be profitable (A) and contribute to the business's overall financial success. However, it is not necessarily required to be expensive (C) or legal (D) in order to be effective. In fact, some competitive advantages, such as a highly efficient production process, may actually help a business reduce costs and improve profitability.
The key is for the competitive advantage to be sustainable, meaning that it can be maintained over time and is not easily replicated by competitors.
