In SAP S/4HANA Transportation Management, a business partner with the role Driver is defined in the master data with specific attributes. According to the SAP documentation:

Non-working times and absences (C): These attributes specify the driver’s availability, including holidays, vacations, or other non-working periods, critical for planning.

Validity period (D): The validity period defines the time frame during which the driver is active in the system, ensuring assignments are time-relevant.

The other options are incorrect:

Fixed assignment to a vehicle resource (A)is optional and managed in vehicle resource master data, not a mandatory driver attribute.

Planning profile (B)is used for planning settings, not for defining driver attributes.