18. Before loading and unloading a trailer at a loading dock, you should: A. Inspect the floor of the trailer to ensure it will support the lift truck and the load B. Check the wheels of the trailer C. Make sure dock plates boards and ramps are in place and secure.

## Step 1<br />This problem is about the safety measures that should be taken before loading and unloading a trailer at a loading dock. The options provided are:<br />A. Inspect the floor of the trailer to ensure it will support the lift truck and the load<br />B. Check the wheels of the trailer<br />C. Make sure dock plates boards and ramps are in place and secure.<br /><br />## Step 2<br />Each of these options represents a different aspect of safety that should be considered before loading and unloading a trailer.<br /><br />## Step 3<br />Option A is about the structural integrity of the trailer, which is crucial to ensure that the trailer can support the weight of the load and the lift truck.<br /><br />## Step 4<br />Option B is about the condition of the wheels of the trailer, which is important to ensure that the trailer can move safely and efficiently.<br /><br />## Step 5<br />Option C is about the safety of the loading dock, which is crucial to ensure that the trailer can be loaded and unloaded safely.<br /><br />## Step 6<br />Considering all these aspects, it is clear that all of these safety measures are important and should be taken before loading and unloading a trailer at a loading dock.