Rachel Used to Think That Rick's Quirkiness and Off-Beat Sense

Multiple Choice

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.