In regard to piecework incentive plans, which of the following statements is most accurate Select one: a. Performance measures are subjective and can be altered by any bias that may be present b. Piecework plans are complex and difficult to communicate to employees. c. Employees know exactly what is expected of them in order to earn the incentive. d. Piecework plans encourage teamwork and cooperation among coworkers. e. Jobs which have a wide scope and a variety of tasks performed in short time frames work best with piecework plans