Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to know if your mouse is obese [title] Position your mouse. [step] Body condition is an assessment of how an animal looks. It ranges from emaciated (extremely underweight) to obese (extremely overweight).

Ending1: Looking at your mouse, rather than thinking about looks, can give you ideas about body weight. [substeps] Look for any enlarged, misshapen, blackish, or dark spots. Ending2: Female mice are considered overweight, and males are considered underweight. Here's how your mouse looks : [substeps] Their bodies are generally thinner, and there are scales in the obese mouse, but there are many in the undernourished and obese mouse. Ending3: [substeps] Look for, body fat near the anus, which is generally a brown substance running off a pig's anus. Fat on the anus can also cause acne, tissue damage, and development of an unhealthy digestive system. Ending4: To determine your mouse's body condition, you will hold it still and examine a few parts of its body. Hold your mouse still by holding the base of its tail with your thumb and middle finger.

Answer format: ending1/ending2/ending3/ending4