You have fixed-price contracts with your carriers.

In SAP S/4HANA Transportation Management, when carriers have fixed-price contracts and guaranteed availability, the subcontracting process can be streamlined by usingtendering with the Broadcast Tendering - First Acceptable Offer type (C). According to the SAP documentation, this tendering method sends the freight order to multiple carriers simultaneously, and the first carrier to accept the offer is assigned, leveraging the guaranteed availability and fixed prices to expedite the process without requiring complex evaluations.

The other options are incorrect:

Assign Best Carrier (A)involves evaluating carriers based on criteria like cost or priority, which is unnecessary with fixed-price contracts and guaranteed availability.

Automatic Tendering (B)automates tendering but does not specifically streamline the process for guaranteed carriers.

Peer-to-Peer Tendering - No Response Required (D)sends the freight order directly to one carrier without expecting a response, which is less efficient than broadcasting to leverage the first acceptance.