Kendra needs to rate five of her subordinates. She makes a chart of all possible pairs of employees for each trait being evaluated. Then, she indicates the better employee of each pair with a positive symbol on the chart. Finally, she totals the number of positive symbols for each employee. Which method of performance appraisal has Kendra most likely used?

• A. comparison ranking scale
• B. graphic ranking scale
• C. alternation ranking
• D. paired comparison