Question

Mrs. otsuki wanted to lose weight. she told her therapist that all her previous attempts seemed to get mysteriously stalled, in spite of her strong motivation. to help, her therapist decided to assess whether her weight loss might be personally threatening to her husband, and arranged for an appointment with the two of them together. the therapist's thinking is most characteristic of a:

Answer 1

I believe the answer is: family therapist
Family therapist's main duty is to help all members in a certain family to have a certain standard of happiness.
When mrs. otsuki lost weight, there is a chance that she would create a confidence blow to the husband and making his depressed or worry that otsuki would leave her.