When you cannot account for all students after unloading:
Correct. Missing student requires immediate search. Stop, brake, search the bus and the area around it before continuing.
CDL Practice Question #471
Category: School Bus
Why this question matters
This question is one of 55 in our School Bus bank. The reasoning above comes directly from the AAMVA CDL Manual, the source document used by every U.S. state DMV. Memorizing the underlying rule — not just the letter answer — is what separates passing on the first attempt from a return trip and another fee.