Which of the Following Describes the Prescription Drug Benefit That

Which of the following describes the prescription drug benefit that Medicare began offering in 2006?

A) The benefit to seniors increases steadily as annual prescription spending is increased.
B) The benefit decreases steadily as annual prescription spending is increased.
C) The benefit to the 1% of seniors with the highest prescription drug costs is greater than the benefit to the 1% of seniors with the lowest prescription drug costs.
D) The benefit to the 1% of seniors with the highest prescription drug costs is less than the benefit to the 1% of seniors with the lowest prescription drug costs.