A learner becomes visibly anxious and makes repeated errors when lessons move to busy multi-lane traffic. The most professionally appropriate instructor response is to:

1. Insist the learner continues in heavy traffic because avoidance reinforces fear
2. Reduce the demand by returning to quieter conditions, rebuild competence and confidence, then reintroduce busier traffic gradually
3. End the course and advise the learner that driving may not suit them
4. Take over with the dual controls for the rest of every lesson in traffic