What is the definition of a bus regarding passenger capacity?

The correct definition of a bus in the context of passenger capacity is a vehicle carrying 16 or more passengers. This classification aligns with regulations and standards that define different types of vehicles based on their passenger capacity.

Buses are typically designed for public transportation and are intended to carry larger groups of people, thus the threshold of 16 passengers distinguishes them from smaller vehicles such as vans or cars. This definition is essential for regulatory purposes, including safety inspections and licensing, as it affects how vehicles are manufactured, maintained, and operated on public roads. Understanding this classification helps ensure that drivers and operators of such vehicles are aware of the specific regulations that apply to them, including safety standards and inspection requirements that are stricter for larger passenger vehicles.