What business documents (objects) can be used as a base for track and trace functionality...

In SAP S/4HANA Transportation Management, track and trace functionality is supported by documents that represent the transportation process and contain relevant tracking information. According to the SAP documentation:

Freight order (A)is a key document used for road or rail transport, containing details about the transportation process, including stages, carriers, and tracking events, making it suitable for track and trace.

Forwarding order (D)is used in logistics service provider scenarios and represents the customer’s transportation requirements, including tracking information across multiple stages.

The other options are incorrect:

Resource (B)refers to vehicles, drivers, or other assets used in transportation, not a document for tracking goods.

Service order (C)is used for internal service-related activities and does not support track and trace functionality for goods transportation.