Answer:
c. The external users include customers, contractors, and suppliers.
Step-by-step explanation:
External users are those that come in contact with the organization's information systems but are not within the organization.
They include suppliers who provide the organization with the materials to be used in setting up the systems, contractors who enter into written or verbal agreements with the organization to provide goods or services, and consumers who buy or use the end products that come out of the organization.