Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to measure the height of horses [title] Purchase a horse measuring stick marked with hand measures. [step] If a horse measuring stick is not available, a standard measuring tape is acceptable. [substeps] Horse measuring sticks can be found at equestrian supply stores (tack shops), farm supply stores and from various online retailers.

Ending1: [title] Make sure the horse is standing on firm level ground with its front feet as even as possible. [title] Place the horse measuring stick or measuring tape at the base of one of the horse's front feet and pull the measuring device up to the withers. Ending2: When buying a horse measuring stick, you will need to purchase one intended to measure height: a natural material (sand, manure, or other similar material) that will support the horse's weight. Horses who grow taller often may prefer a stick that has greater accuracy. Ending3: If you are a cowboy looking to build a riding stable, it is a good idea to buy the one marked. [title] Hold the measuring stick in front of you. Ending4: [title] Attach the nose to the half of the stick. [step] Hold the horse upside down and purchase a nose test tape for testing their height from a distance of greater than 20 ft (4.6 m) (especially when crossing the ground).

Answer format: ending1/ending2/ending3/ending4