If a passenger vehicle wants to turn left and a streetcar is proceeding straight, which vehicle must wait?

Answer: C — The passenger vehicle

When a passenger vehicle intends to turn left at an intersection while a streetcar is moving straight through, the passenger vehicle must yield the right-of-way to the streetcar. This requirement exists because streetcars typically have more limited maneuverability, often operate in designated tracks, and their trajectory is less flexible compared to passenger vehicles. In many jurisdictions, vehicles must yield to streetcars when they are approaching or already in an intersection. This is particularly true in cases where the streetcar has the right-of-way in relation to other traffic. The focus is on ensuring the safety and smooth operation of public transport systems, which are expected to maintain their route. Therefore, the passenger vehicle must wait until it is safe to turn left without crossing the path of the streetcar. Understanding these rules is critical for drivers who need to make informed decisions in traffic situations involving streetcars and other road users.