What type of vehicle is considered a house trailer?

The designation of a house trailer specifically refers to a structure designed for residential living that is towed behind a vehicle. This includes those trailers that may not be classified as recreational vehicles (RVs) but are utilized for mobile residential purposes, such as living quarters or temporary housing.

A trailer other than a towable recreational vehicle fits this definition as it encompasses various types of trailers intended for habitation rather than just recreational use. This distinction is important because while recreational vehicles may include features for camping and leisure, a house trailer emphasizes permanent or semi-permanent living arrangements.

Understanding this categorization clarifies why the selected answer is appropriate within the context of traffic regulations and definitions. Other options do not align with the characteristics of a house trailer because they either focus on functionality related to transportation of goods or do not account for living use, which is the essential aspect of a house trailer's definition.