Final answer:
A driver in the right lane of traffic must yield to any transit/metro from the left lane.
Step-by-step explanation:
In traffic, a driver in the right lane must yield to any transit or metro that is approaching from the left lane. This rule applies to situations where there are designated transit lanes or when a transit vehicle is trying to merge into the right lane. By yielding to transit vehicles, drivers can ensure the safety and efficiency of the traffic flow.