If you're a fitness walker, there is no need to go to a gym. Your neighborhood can be your gym. You don't need a lot of fancy equipment to get a good workout either. All you need is a well-designed pair of athletic shoes.
This paragraph best supports the claim that
A.fitness walking is a better form of exercise than weight lifting.
B.poorly designed athletic shoes can causc major foot injuries.
C.walking outdoors provides a better workout than walking indoors.
D.fitness walking is a convenient and valuable form of exercise.