Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to purchase cheap adjustable dumbbells [title] Determine your workout goals. [substeps] Are you looking to pack on muscle or tone your muscles? Or both? This goes hand in hand. [title] Decide how much weight, with your adjustable dumbbells, that you'll be needing.

Ending1: [substeps] Generally speaking, there are 2 types of adjustable dumbbell sets to purchase. Some that range from 5 to 25 lbs. Ending2: [step] Approximately 100% of your bodyweight is for health reasons. As you've probably spent months considering how much weight you'll need, you'll want to consult with your gym membership counselor for further advice. Ending3: [substeps] Divide the total purchase price by how many total repetitions you will need. Each muscle was created to support and control your weight, so you need to know how many days you will be lifting the dumbbells. Ending4: [step] Some people find that they need a 5 lb dumbbell around 7 times their weight. Others prefer 15 lb dumbbells around 8 times their weight.

Answer format: ending1/ending2/ending3/ending4