Final answer:
When driving slower than the traffic flow, you should stay in the right lane to avoid obstructing traffic and maintain road safety.
Step-by-step explanation:
When you must drive more slowly than the traffic flow, it is recommended that you stay in the right lane. This is because the right lane is generally reserved for slower-moving traffic, and using it allows other vehicles to pass safely on the left. It is crucial for safety not to obstruct traffic and to allow others to navigate around you. Driving slower than the surrounding traffic in any other lane, overtaking on the shoulder, or using hazard lights when not appropriate can create unsafe conditions for all road users. If driving slowly is a necessity, for example, due to vehicle limitations or road conditions, it is essential to be courteous and mindful of others to maintain safe and efficient traffic flow.