What should you do when you see a no passing zone sign?

When you see a no passing zone sign, it indicates that it is illegal and unsafe to attempt to overtake other vehicles in that area. This is typically due to factors such as limited visibility or the presence of hazards that make passing dangerous. By adhering to this sign, you are helping to maintain safety on the road, reducing the risk of accidents caused by improper passing maneuvers.

Following the no passing zone rules ensures that you are abiding by traffic laws designed to protect all road users. Ignoring this sign could lead to serious consequences, not only for yourself but for others on the road as well. The other options would lead to behavior that conflicts with the intent of the sign; for example, changing lanes or increasing speed is likely to create hazards in a zone specifically marked for caution.