As You Approach the Scene of a Motor Vehicle Collision

As you approach the scene of a motor vehicle collision, you realize that there is a tanker truck involved and that it has tipped over. Which of the following actions is appropriate?

A) Stop a safe distance away, use binoculars to locate any placards on the tanker, and reference the Emergency Response Guide.
B) Stop a safe distance from the scene, use binoculars to locate any placards on the tanker, and reference the safety data sheet.
C) When you reach the scene, look for the NFPA 704 label and reference the safety data sheet.
D) When you reach the scene, look for any placards on the tanker and reference the Emergency Response Guide.