An analyst is assigned to develop and recommend an appropriate methodology for gathering information from employees in a large department undergoing a classification study. Which statement best describes the most appropriate information gathering technique and why? The analyst should recommend

a$.$ a focus group because it is the best way to obtain unbiased information from incumbents.

b$.$ individual meetings with supervisors and managers to obtain detailed information about the tasks performed by subordinates.

c$.$ functional statements because they will outline the major organizational responsibilities assigned to the various work units.

d$.$ a questionnaire completed by the incumbents and reviewed by supervisors for accuracy as it is an efficient way to collect data.