Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to bolt down a gun safe [title] Locate the anchor hole. [step] Most medium and large gun safes are made with an anchor hole in the bottom. Fireproof gun safes often place holes at the center; traditional gun safes tend to put anchor holes in the corners.

Ending1: [substeps] A lag screw or cement bolt passes through the hole in the gun safe to sturdily connect it to cement underneath. Smaller gun safes may have anchor holes on the back or sides of the gun safe. Ending2: If you are storing 1 firearm, you will need 1 anchor hole. [substeps] If you are storing more than 1 gun, you will likely need 2 anchor holes. Ending3: Use a flashlight or a keyboard to shine the light inside your gun safe. [substeps] Verify to yourself that the anchor hole has been adequately marked. Ending4: [substeps] If you don't have an anchor hole, the door, key bar, or door jamb would be best. If you have a key bar, look for a larger anchor hole so that the bullet doesn't accidentally enter the key hole.

Answer format: ending1/ending2/ending3/ending4