A user filter is the correct configuration because it meets both requirements. By creating a user filter on the "status" field and setting a default value to "active", the record list will initially display only the active vehicles as desired. Because user filters are interactive, users can then modify or clear the filter selection at any time to view the complete, unfiltered list of all vehicles (both active and inactive), fulfilling the on-demand auditing requirement. This approach provides the necessary default view while maintaining flexibility for the end-user.

A. Visibility on the Status column controls whether the column itself is displayed, not which records (rows) are filtered from the list.

B. A source filter permanently filters the data at the source level. Users cannot change or remove this filter from the interface to see the unfiltered list.

1. Appian Documentation, "Configure Filters on the Record List": This document details the two main types of filters. It states, "User filters allow users to apply filters to the record list on an ad hoc basis." It also specifies that you can "set a default value for a user filter," which directly supports the configuration in option C.

2. Appian Documentation, "Configure Filters on the Record List": In the section describing source filters, the documentation clarifies, "Source filters are applied to the record type source...Users cannot see or change this filter." This confirms why option B is incorrect as it does not allow users to see the unfiltered list.

3. Appian Documentation, "Record List": In the section on configuring the list view grid, the showWhen parameter for columns is described. This parameter controls the visibility of a column, not the filtering of rows, which demonstrates why option A is incorrect.