In Order, What Are the Steps That You Should Perform

In order, what are the steps that you should perform when arriving at a trauma scene?

A) Evaluate scene safety, put on PPE, determine mechanism of injury, begin primary survey
B) Determine mechanism of injury, evaluate scene safety, put on PPE, begin primary survey
C) Evaluate scene safety, determine mechanism of injury, put on PPE, begin primary survey
D) Put on PPE, evaluate scene safety, determine mechanism of injury, begin primary survey