Answer:
(B) post the criteria she will use to determine raise recipients at the beginning of each year
Explanation:
Based on the story, Grace has to be fair with the assessment of her team. She should let her workers know her criteria, so that they would understand what type of performance is expected from the company, and how only those that can achieve it will receive wage increases. This would create a better atmosphere between her employees and foster healthy competition rather than the current suspicion that permeates now.