This answer is unsupported. We don’t know from the stimulus under what circumstances people will usually adopt beliefs.

This answer is unsupported. First, we don't know whether the customers think either policy is "fair." Second, the amount that particular customers benefit is the same under each policy.

This answer is unsupported. The stimulus only discusses one very narrow financial issue, so we can't say that people "usually" get emotional about finances.

This answer is unsupported. First, the customers didn't change their mind about the original policy—they were happier with the new policy instead. Second, we can't generalize from this narrow example to what "often" happens.

This answer is strongly supported. The second policy was effectively the same as the first, but presented as an opportunity for savings instead of a surcharge. That presentation was more important to the customers' reactions.