Which of the Following Situations Requires Additional Action by the EMT

Multiple Choice

Which of the following situations requires additional action by the EMT during scene size-up?

A) A vehicle collision involving a tractor-trailer that appears to be empty.
B) The sound of a barking and growling dog upon approaching the door to a residence.
C) A bystander who is smoking a cigarette at the scene of an assault at a local park.
D) A news media helicopter arrives and hovers overhead at the scene of a vehicle collision.