Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to construct moving boxes [title] Locate the flaps at the top of the box. [step] To find the top of the box, look for the flaps that are connected by small cardboard tabs. Only the flaps at the top of the box will have these tabs.

Ending1: Use you fingers or a cardboard cutter to turn these tabs clockwise. [substeps] You can use big cut-out tabs to run up the sides of the box as well. Ending2: You can also look for letters or arrows on the box that indicate which side is the top. [title] Fold the top flaps down on both sides. Ending3: [substeps] The tabs are used to prevent very heavy boxes from moving around. By removing these tabs, you can move many boxes. Ending4: They should feel secure, so avoid pulling them straight off the box. If you don't see tabs, and if they easily pull off, you'll have to break them.

Answer format: ending1/ending2/ending3/ending4