What actions can lead to immediate arrest during a DUI stop?

The correct answer focuses on the significance of failing field sobriety tests or showing signs of impairment. During a DUI stop, law enforcement officers are trained to identify indicators of a driver's level of impairment. These indicators can include the results of field sobriety tests, such as the ability to balance, follow instructions, and demonstrate coordination. If a driver fails these tests or otherwise exhibits clear signs of being under the influence, such as slurred speech, bloodshot eyes, or the smell of alcohol, these factors provide the officer with probable cause to make an arrest.

In contrast, possessing a valid driver’s license, remaining calm, or providing accurate information to law enforcement do not directly contribute to any suspicion of impairment. In fact, these behaviors are typically seen as responsible actions that would not lead to arrest. The focus of a DUI investigation is primarily on the driver's physical and cognitive abilities as they relate to the operation of the vehicle, making the correct answer critical in understanding how impairment is evaluated by law enforcement.