Kathren repeatedly watches the recorded episodes of a tv show. she generally doesn’t smile or show any expression while watching these. once, while watching an episode, kathren was asked to smile by her mom. when she watched the episode smiling throughout, she reported finding the episode more humorous, even though she had seen it several times earlier. this scenario supports the

Emotional numbness

Explanation:

Kathren is not having any emotions or expressions while watching a humorous episode on TV because she is dealing with emotional numbness.

She is feeling isolated, uconcentrated and she is clearly unable to think deeply so she doesn't find that episode funny until her mom points her to smile and then she is getting to notice the episode.

The cause of this kind of numbness is mostly anxiety and depression.

answer; (b) binge eating disorder;