Martina is an assistant to the HR manager at XYL Corporation. She has been asked to restructure the jobs in her unit to make them more motivating. She comes to you for advice. Specifically, she would like to know the questionnaire that could help her describe the degree to which a job is designed to motivate people. You would probably tell her that the appropriate index she must consider using is the _____________________________. a. Job Characteristic Index. b. Motivating Potential Score. c. Job Diagnostic Survey. d. Job Diagnostic Survey