What does it mean if a driver's license is marked "not valid"?

When a driver's license is marked "not valid," it indicates that the license cannot be legally used for driving. This status could result from several factors, such as a suspension due to violations, no longer being eligible to hold a license, or other legal issues that render the license ineffective. This means that the holder of the license would be breaking the law if they attempted to drive, which could lead to penalties or further legal repercussions.

The other options pertain to specific situations that may not accurately reflect the meaning of "not valid." An expired license can still be eligible for renewal, and a temporarily suspended license would typically allow for eventual reinstatement. Validity in other states does not apply here, as a license marked "not valid" is universally recognized as unusable.