When should emergency evacuation of a school bus be performed?
a.Whenever a student requests it
b.When there is a fire, the bus is in an unsafe position, or there is an imminent danger
c.At every stop
d.Only during drills
Explanation
Emergency evacuation should be performed when there is a fire or danger of fire, the bus is in an unsafe position such as risk of tipping, or there is an imminent hazard that makes staying on the bus more dangerous than evacuating.