Which one of the following is an argument against repricing employee stock options? Select one: a. ESO's are originally issued with positive intrinsic value so there's no reason to reprice. b. Employees have more incentive when options are "under-water". c. Repricing is a reward for failure. d. It is unnecessary to reprice as ESOs expire quickly. e. Repricing affects the market price of the firm's stock for all shareholders.