You Have Just Arrived on the Scene of an Agricultural

You have just arrived on the scene of an agricultural business and see three men coming out of a building,choking and holding their heads.One of the men tells you there are two workers still inside.What should you do next?

A) Call for properly trained assistance and stay a safe distance away from the scene.
B) Cover your nose and mouth with a wet towel and check on the status of the two workers inside the building.
C) Get the assistance of the men who made it out of the building to prevent delay in finding the workers inside.
D) Evaluate the three men and administer high-concentration oxygen, then help them get a safe distance away from the scene.