Final Answer:
A bus operator must check the mirrors for a lane change before and after signaling the lane change.
So. the correct statement is C.
Step-by-step explanation:
A bus operators responsibility extends beyond the act of signaling alone. Checking the mirrors before signaling a lane change is imperative to assess the current traffic conditions and evaluate the feasibility of the maneuver.
This proactive approach allows the bus operator to make a well informed decision taking into account the presence of nearby vehicles and ensuring that the intended lane change can be executed safely.
Equally important is the post-signal mirror check as it serves as a confirmation that the lane change can proceed without posing risks to surrounding traffic.
The dynamics of the road can change rapidly and monitoring the mirrors after signaling provides real time information about any vehicles that may have approached during the signaling process.
This dual mirror checking strategy both before and after signaling creates a comprehensive safety protocol for bus operators minimizing blind spots and reducing the likelihood of collisions during lane changes.
So. the correct statement is C.