Answer:
D. the demand for Nike running shoes is less elastic than the demand for shoes.
Step-by-step explanation:
In this the substitutes would be more for the particular brand rather than the normal running shoes. Since the demand of running shoes might be less elastic as compared to the demand of nike running shows because the consumer shifted from the nike to other brand that are popular. Plus, the elasticity of demand for running shoes is considered to be inelastic as there is many subsitutes
So, the option d is correct