Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to know what is normal for a horse [title] Check the heart rate. [step] This can be checked by placing the hand under the left elbow. Count the beats for 10 seconds then multiply the beats by 6.

Ending1: That will tell you the heart rate per minute. A normal heart rate is 35-40 beats per minute. Ending2: [substeps] These will be the kind of beats that tell you how the horse is feeling. The song helps to locate this kind of interval. Ending3: If the heart rate is within 55%, the horse is calm. If it is below 55%, the horse is agitated. Ending4: As you count up, the heart rate will drop. The heartbeat will be somewhere around 6 beats per minute (bpm).

Answer format: ending1/ending2/ending3/ending4