Which of the Following Most Accurately Describes the Hedonic Treadmill

Which of the following most accurately describes the hedonic treadmill?

A) This term is used for attaining different levels of happiness on the hedonic scale.
B) This term is used to describe how hedonists attain happiness by constantly minimizing their need for material possessions.
C) This term refers to the ever-increasing amount of physical or psychic pleasure it takes to provide the same level of happiness.
D) This term is associated with eudemonia in the sense that both terms posit that happiness is only obtained through always acting ethically.