When does a learner driver need to display L plates?

A learner driver must display L plates at all times while driving to ensure that other road users are aware they are learning. This visibility is crucial for safety, as it allows surrounding drivers to exercise caution and patience when interacting with the learner. By having the L plates displayed at all times, it communicates to everyone on the road that the individual is still developing their driving skills and may not yet have the experience required for independent driving. This practice promotes a safer driving environment and helps prevent accidents that could occur due to misunderstandings about the learner's driving capability.

The other options suggest limited instances or conditions under which L plates may be displayed, which do not align with the requirement that L plates must be shown at all times for consistent safety awareness on the road.