What type of tasks can employees perform using the Employer self-service portal?

Employees can perform various common tasks using the Employer self-service portal, making option C the most appropriate choice. These tasks typically include updating personal information, reviewing pay slips, managing time off requests, and accessing their benefits information. The portal is designed to empower employees, allowing them to handle routine HR-related functions independently without needing to contact HR personnel directly, which enhances efficiency and accessibility.

Submitting complaints, obtaining training materials, and accessing external resources may be part of an organization's broader offerings, but they are not the primary focus of a self-service portal. The self-service portal is intended to streamline common employee-related tasks and facilitate better management of personal employment data, which is why managing common tasks stands out as the most relevant function of such a portal.