How is "highway" defined according to the Texas Transportation Code?

Answer: B — The entire width of publicly maintained roads

The definition of "highway" according to the Texas Transportation Code is comprehensive, encompassing the entire width of publicly maintained roads. This includes not just the paved portion used for vehicular travel but also the adjacent areas typically used for pedestrian activities and buffering from the surrounding environment. The broad definition ensures clarity in legal contexts, particularly in matters of traffic enforcement, road maintenance, and liability issues. Recognizing the whole width of a public road as a "highway" is crucial for various regulatory frameworks in transportation, emergency response, and urban planning. Thus, this definition aligns with the intention to provide a safe and well-managed roadway system for all users.