What must the driver of vehicle 2 do when approaching vehicle 3?

When approaching vehicle 3, the driver of vehicle 2 must observe the right-of-way. This rule is essential in traffic management, helping to prevent accidents and ensuring smooth movement on the roads. Right-of-way dictates who has priority in various driving situations, and it's crucial for drivers to respect it to maintain safety.

In this scenario, vehicle 2 should assess the situation, determine if vehicle 3 has the right-of-way, and act accordingly. This may involve yielding to vehicle 3 if it is in a position that requires it to go first, such as in an intersection or when merging. Understanding and adhering to right-of-way rules enhances predictability among drivers and reduces the likelihood of collisions.

The other options, such as accelerating to pass, braking suddenly, or ignoring oncoming traffic, either do not align with safe driving practices or would potentially lead to hazardous situations on the roadway. Always prioritizing the right-of-way is a key aspect of responsible driving.