Barbara's Therapist Tells Her That She Is Applying Arbitrary Inference

Barbara's therapist tells her that she is applying arbitrary inference to her thinking, which ultimately is causing her to be depressed. Which of the following is an example of arbitrary inference?

A) Barbara tends to jump to conclusions with little or no evidence to support her beliefs.
B) Barbara maximizes the bad things she experiences while minimizing the good aspects of life.
C) Barbara focuses strictly on a single negative event while ignoring less negative aspects.
D) Barbara tends to overgeneralize a single bad event and assume all things about her life are failing.