Which of the following is a vital part of the full-body harness that should be located between the shoulder blades? carabiner lanyard trauma strap D-ring

## Step 1<br />The question is asking about the vital part of a full-body harness that should be located between the shoulder blades. A full-body harness is a safety device used in fall protection systems. It is designed to distribute the forces experienced during a fall over the strongest parts of the body, which are the pelvis, thighs, and chest.<br />## Step 2<br />The options provided are carabiner, lanyard, trauma strap, and D-ring. The carabiner and lanyard are parts of the fall protection system, but they are not the parts that should be located between the shoulder blades.<br />## Step 3<br />The trauma strap is a part of the harness that is designed to limit the force experienced by the body during a fall. However, it is not the part that should be located between the shoulder blades.<br />## Step 4<br />The D-ring is the part of the harness that should be located between the shoulder blades. It is the point where the lanyard is attached, and it is designed to distribute the forces experienced during a fall over the strongest parts of the body.