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Walking is not the most exciting form of exercise a person can take on for fitness. Yet it is low impact and requires no fancy equipment. That makes walicing a simple
activity for those new to exercise Walking is less likely than other exercises to cause injury to leg tendons and muscles. All it requires is a good pair of sneakers no
cables, stylish outfits, or weights required. Of course, a person could increase the benefit of a workout by adding weights or speed walking

Identity the main idea of this paragraph

Walking is a difficult and safe exercise for beginners
Walking is an easy and safe exercise for beginners
Walking is a boring and dangerous form of exercise
Walking is an exciting and very effective form of exercise