Rachel used to think that Rick’s quirkiness and off-beat sense of humor was unique and enjoyable. A year later, however, Rachel finds Rick’s quirkiness and off-beat sense of humor to be annoying and arrogant. Applying Thibaut and Kelley’s theory, which statement is most correct?

A. Rachel has a greater comparison level of alternatives.
B. Rachel and Rick have different novelty v. predictability needs.
C. Rachel and Rick are using spiraling alteration between opposing tensions.
D. What was once a reward, Rachel now views as a cost.

D. What was once a reward, Rachel now views as a cost.