Which of the statements below best fits the role benchmarking plays in organizations? Select one: a. determine whether a company has achieved Six Sigma accuracy in performing a particular value chain activity. b. identify which company is the world's lowest-cost performer of a strategically-relevant activity and to figure out how to copy that company's low-cost methods. c. measure the extent to which a company's performance of an activity is better than the established industry standard--a company's performance of the activity becomes a "best practice" when its performance is at least 20% better than the industry standard. d. identify which company is the world's best performer of a strategically-relevant activity--the payoff comes from then exactly copying the world-class company's methods so as to significantly improve a company's own performance of the activity. e. look outward to find the best practice for performing an activity and then develop the data for measuring how well a company's own performance of that activity stacks up against the best-practice standard