C - https://docs.appian.com/suite/help/23.3/record-actions.html#Record%20list%20actions

I might go with "Add an Employee" Record list actions Record list actions are links to process models the user can start directly from the record list. Record list actions can be configured to open in a dialog, the same tab, or a new tab. After completing a record list action, users return to the record list. When actions are configured to open in a dialog, any user filter values are remembered when returning to the record list. A common use case is to add an action to "create a new record". This allows users to leverage the record list search to ensure the record in question does not already exist. It also allows developers to use their five site pages more efficiently by combining record and action functionality. By default, record list actions display on the record list. Optionally, you can also configure record list actions to display in interfaces. https://docs.appian.com/suite/help/23.2/record-actions.html

A. View the details of an Employee Justification: A record list action is typically used to retrieve a list of records that match certain criteria or conditions. It allows you to query and fetch multiple records from a data source based on specified filters or sorting rules. In the context of the given scenario, where a record for Employees has been created, a record list action would be suitable for viewing the details of multiple employees. It enables you to fetch and display a list of employee records, allowing you to view their respective details.

Option A is applicable for summary view, not for RecordList view

You would want to view it first than add. So A.