What is the speed limit in urban areas unless otherwise posted?

Answer: B — 50 km/h

In urban areas, the standard speed limit is set at 50 km/h unless otherwise indicated by posted signs. This speed limit is designed to ensure the safety of pedestrians, cyclists, and other road users found in densely populated areas. It allows drivers to react appropriately to sudden stops or hazards that may arise in a city environment, where traffic can be more congested and unpredictable. This limit reflects the balance between allowing vehicles to move efficiently while also prioritizing safety in areas where there are more people, businesses, and potential conflicts between vehicles and pedestrians. In contrast, lower speed limits can be found in school zones, residential areas, or specific locations where additional caution is warranted, but as a general rule, 50 km/h is the maximum speed allowed in urban settings.