What is the speed limit in rural open country?

In rural open country, speed limits can vary depending on specific state regulations, but generally, they typically fall within the range of 50, 55, or 65 mph. This range is established to promote safe driving on less congested roads that may not have the same level of traffic control as urban areas. The higher limits reflect the typically clearer and straighter roadways found in rural settings, where conditions allow for higher speeds while maintaining safety.

The other options suggest either lower or higher limits that are not standardly applied to rural open country settings. For example, while 70 mph might be found on certain highways, it is not generally designated as a speed limit for all rural areas. The variations from 50 to 65 mph align better with the balance of ensuring driver safety and efficient travel in locations where speeds are less restricted compared to urban zones.