Clause 1.10 (term "Truck")

Truck — a vehicle which, by its design and equipment, is intended for the carriage of cargo.

This definition establishes the main purpose of a truck — specifically the transportation of cargo (not passengers).

Therefore, the correct answer is "Cargo", given that according to the definition in the Traffic Rules, a truck by its design and equipment is intended for the carriage of cargo.

In this question, it is important to rely not on everyday understanding, but on the definition from the Traffic Rules. In point 1.10, the term "truck" is given, and it describes what such a vehicle is designed and equipped for according to its construction.

From the content of the definition, it follows that a truck is intended specifically for the transportation of cargo. That is, its main functional purpose is to transport things, materials, products, etc., for example, to carry building materials, pallets of goods, or other property that is considered cargo.

At the same time, the definition of a "truck" does not mention the transportation of passengers as its purpose. That is why, within the scope of this test question, the correct answer is chosen according to the Traffic Rules term: a truck is a vehicle for cargo, not for passenger transportation.

Therefore, the correct answer is "Cargo," since according to the definition of the Traffic Rules, a truck is structurally intended for the transportation of cargo, not passengers.