Final answer:
California's "Basic Speed Law" requires driving at a safe speed suited to current conditions, irrespective of the posted limit.
Step-by-step explanation:
California's "Basic Speed Law" states that you must never drive faster than is safe for current conditions, regardless of the posted speed limit. For example, if you are driving in heavy rain, you might need to drive slower than the posted speed limit to comply with the Basic Speed Law. The fictional data provided references various driving scenarios which highlight different aspects of traffic laws, adherence to speed limits, and safe driving practices. These examples depict how the de jure (legal) speed limit and the de facto (practical) speed limit can differ, and the importance of driving at a safe speed based on various circumstances, whether it be traffic, weather conditions, or presence of law enforcement.