True or False: A truckload carrier dedicates single trailers to a single shipper's cargo.

Answer: A — True

A truckload carrier is characterized by its operation of dedicating a whole trailer to the cargo of one particular shipper. This means that the entire space within the trailer is utilized exclusively for that shipper's goods, allowing for a direct and uninterrupted transport of their products from point A to point B. This model is typically favored for shipments that are large enough to fill a trailer, as it often leads to greater efficiency and faster delivery times. In contrast, other shipping methods like less-than-truckload (LTL) combine shipments from multiple shippers into a single trailer. Since the focus of the question is on truckload carriers specifically, the identification of a truckload carrier as one that dedicates whole trailers to a single shipper's cargo makes the statement true. This specialization also aligns with the operational strategies of truckload carriers, which aim to maximize the use of available space by committing to a singular cargo client for each trip.