An IS auditor reviews an organizational chart PRIMARILY for:

A. an understanding of workflows.

B. investigating various communication channels.

C. understanding the responsibilities and authority of individuals.

D. investigating the network connected to different employees.

Explanation: An organizational chart provides information about the responsibilities and authority of individuals in the organization. This helps an IS auditor to know if there is a proper segregation of functions. A workflow chart would provide information about the roles of different employees. A network diagram will provide information about the usage of various communication channels and will indicate the connection of users to the network.