Final answer:
The maximum speed limit in urban areas of Manitoba, unless posted otherwise, is 50 km/h, ensuring pedestrian and driver safety.
Step-by-step explanation:
The maximum speed limit in urban areas (city or town) of Manitoba unless otherwise posted is c) 50 km/h. This speed limit is considered standard for residential areas and helps to ensure the safety of pedestrians and drivers. When crossing a road, one should make sure they can walk at least 4 meters (which accounts for the 2-meter width of an average car plus an additional 2 meters) before a car traveling at this limit reaches them. This is to ensure adequate time to cross safely in urban traffic conditions.