Before entering the mechanics laboratory,remove Select one: a. Ties b. Jewelry c. Watches and rings d. All of these

## Step 1<br />This problem is a multiple-choice question that tests the knowledge of safety rules in a mechanics laboratory. The question asks what items should be removed before entering the mechanics laboratory.<br />## Step 2<br />The options provided are: a. Ties, b. Jewelry, c. Watches and rings, and d. All of these.<br />## Step 3<br />In a mechanics laboratory, safety is paramount. Therefore, it is important to remove any items that could potentially get caught in machinery or cause accidents.<br />## Step 4<br />Ties, jewelry, watches, and rings can all get caught in machinery, leading to potential accidents. Therefore, it is safest to remove all of these items before entering the mechanics laboratory.