Final Answer:
In ideal weather and road conditions, a speed limit of 15 miles per hour is generally inappropriate for regular traffic flow. Option D is the answer.
Step-by-step explanation:
Under ideal weather and road conditions, speed limits are typically set to allow for safe and efficient traffic movement. A speed limit of 15 miles per hour is often considered too low for regular roadways, where higher speeds are usually permitted. Common speed limits in such conditions range from 25 to 75 miles per hour, depending on the type of road and local regulations.
Lower speed limits, such as 15 miles per hour, are more commonly associated with specific zones like school zones, residential areas, or parking lots, where additional caution is necessary due to the presence of pedestrians or potential hazards.
Option D is the answer.
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Complete Question:
In ideal weather and road conditions, which of the following speed limits is incorrect?
25 miles per hour
45 miles per hour
35 miles per hour
15 miles per hour
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