Paula,the CEO of Gester Inc

Paula,the CEO of Gester Inc.,wants to carry out the first company-wide performance appraisal.However,she needs to make sure that the information obtained for performance appraisal is free of bias,and that the managers have provided information about subordinates without any personal needs influencing the information.Which of the following options will be assist Paula in obtaining her objective?

A) Paula must focus on obtaining information only from supervisors of employees being appraised because managers have incentives for giving accurate information.
B) Paula must occasionally work alongside the employees to ensure that they are working diligently.
C) Paula must personally question all the managers who appraise their subordinates in the performance appraisal as this will ensure integrity of information.
D) Paula must devise a policy that focuses on confidentiality of appraisal information once it is gathered from different sources because this will ensure security of information.
E) Paula must hold calibration meetings because they hold managers accountable for the appraisal information they provide about their subordinates.