Dr Scholl Therapeutic Sandals Claim to Massage the Feet with Use

Dr Scholl therapeutic sandals claim to massage the feet with use. Dr Scholl's marketers are careful to protect the therapeutic image of their product. To that end, the company will only agree to it being sold in pharmacies which help to highlight the product's health giving properties. Which of the following BEST describes Dr Scholl's approach to positioning?

A) positioning against a competitor
B) positioning at a market segment or user group
C) positioning by benefits- sought
D) positioning along price lines
E) positioning for a product class