Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to become a female fitness model [title] Determine your niche. [step] Fitness is for people of all ages and lifestyles, from teens to older adults. Make yourself more marketable as a fitness model by highlighting what makes you unique.

Ending1: This may include physical health, diet and exercise. Athletic fitness may include : [substeps] Physical strength like cardio or resistance training running an athletic instrument, like a baton or barbell weight training [title] Obtain a high school diploma or ged. Ending2: [substeps] With every age group you are, you are more likely to figure out what gets you into your fashion message. Men in teen bodies usually prefer these ages and look for larger breasts. Ending3: If you keep fit by hiking and skiing, you'll appeal to outdoor adventurers. If you're a busy mom who squeezes in workouts in between your job and homework time, you'll connect with working parents. Ending4: For example, you may not have the outgoing, bubbly spirit that many people want, and maybe you don't even work out. [substeps] The drug treatment process can have significant negative effects on your abilities to lift weights.

Answer format: ending1/ending2/ending3/ending4