Advil's Advertising Claims That "The Medicine in Advil Is Prescribed

Advil's advertising claims that "the medicine in Advil is prescribed more for arthritis pain than the medicine in Tylenol and Tylenol Arthritis Extended Relief." How is Advil positioning itself?

A) in relation to a competitor
B) by price and quality
C) by product class
D) in relation to demographics
E) on the basis of product life cycle