Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to set a cuckoo clock [title] Keep the clock in a vertical position. [step] Before setting the clock, you should hang it on the wall where you intend to keep it. The clock must be in an upright position before you can set it.

Ending1: [substeps] The clock should be 6 to 6.5 feet (1.8 to 2 m) above the floor. Use wide wood screw (like a 8 or 10) that is long enough the fasten into a stud in the wall. Ending2: The more vertical the clock is, the greater the chance you make the wind chime. [title] Allow the clock to strike an hour. Ending3: [substeps] If you cannot find the wall you want to hang it from, look for a stud or an anchor. If you only plan to hang it somewhere with small openings, like outside, it is probably best to have the clock hung down inside. Ending4: [title] Wrap a piece of ribbon or a string around the clock. [step] For the best results, fasten a string of ribbon around the clock face twice.

Answer format: ending1/ending2/ending3/ending4