Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to mount bindings onto a snowboard (a beginner's guide ) [title] Find the leading foot binding. [title] Locate the 15 degree angle on the mounting disk using the disk's notches. [title] Place the mounting disk into the leading foot binding, lining up the 15 degree angle notch with the binding's arrow.

Ending1: [step] You will need to use different numbers of slices of wood to accomplish this process, so decide with your guide how far apart your snowboard is to ensure the bindings are about two inches apart. [title] Find a center fold on the mounting disk. Ending2: [title] Repeat steps 2 and 3 until you are at the 180 degree angle. [step] It takes some practice, especially with benches on slopes, to get it right. Ending3: [title] Place the leading foot binding (with the inserted mounting disk) over the 4 center screw locations closest to the nose of the board. [title] Loosely screw the binding in place using the 3 philips head screwdriver and the 4 screws provided. Ending4: [title] Open and close the inner rear lip of the mounting disk, trying to create a center bead of r1. [step] Under " center bead, " you will see two sets of 10 5 degree angle notches along one edge.

Answer format: ending1/ending2/ending3/ending4