What should drivers do during a heavy downpour with limited visibility?

Answer: B — Pull off the road and wait for the rain to lessen

During a heavy downpour with limited visibility, the safest choice is to pull off the road and wait for the rain to lessen. This action reduces the risk of accidents that can occur from impaired visibility and reduced traction on the road. Heavy rain can cause hydroplaning and make it difficult to control the vehicle, so seeking a safe place to wait until conditions improve is a prudent decision. Using windshield wipers and proceeding normally, or driving cautiously with high beams on, may not adequately address the significant visibility issues created by heavy rain. In fact, high beams can create glare on wet roads, worsening visibility. Continuing to drive at a reduced speed may seem like a reasonable option, but if visibility is severely compromised, it still exposes the driver to danger. Therefore, waiting until conditions improve is the safest approach.