Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to do a deadlift [title] Prepare the barbell. [step] Place the barbell on the ground in front of you and add plates according to your strength and fitness level. If it is your first time performing the deadlift, start lighter.

Ending1: If your fitness level improves you can start with heavier barbells. Make sure the plate is resting on the top of the barbell. Ending2: If you do not, start with a heavier barbell. [substeps] Use a barbell with a bag. Ending3: This helps you have enough strength to progress downward without injuring yourself. [substeps] For every rep, you will need a barbell. Ending4: It is always easy to add weight later. You want to perfect your form before you test your physical limits.

Answer format: ending1/ending2/ending3/ending4