Which of the following is a component of the Walk-and-Turn?

The correct component of the Walk-and-Turn is walking in a straight line. This test is designed to assess a person's balance, coordination, and ability to follow instructions. During the Walk-and-Turn exercise, the subject is instructed to take a series of heel-to-toe steps along a straight line. This aspect is crucial, as it simulates divided attention tasks that are commonly encountered during driving.

The ability to walk in a straight line indicates that the participant can maintain control over their bodily movement, which is often impaired by alcohol or drugs. The effectiveness of this test lies in its simplicity and the clear physical indicators of impairment, making it a reliable indicator during a sobriety assessment.