43 患肌萎縮性脊髓側索硬化症（amyotrophic lateral sclerosis）者和家人常面臨「模糊性失落（ambiguous loss）」 ，關於「模糊性失落」的特性描述，下列何者較為適當？
(A)潛水鐘與蝴蝶（the diving bell and the butterfly）
(B)一件好事發生（a good thing happened）
(C)再見而未離開（goodbye without leaving）
(D)選擇自己的生活（choosing one’s way）

A loss of any kind can be hard, but Boss contends that ambiguous loss can be particularly challenging because of its lack of closure and resolution. For example, in the case of a missing person, those left behind may feel like they must make the excruciating choice of either living in a state of perpetual uncertainty but holding onto hope, or deciding to inject some resolution by mourning and attempting to move on. Everyone will respond differently to such ambiguous loss and everyone must find a way to cope in a way that makes sense for them. Regardless, the overarching uncertainty of the situation often leads to prolonged grief and feelings of anxiety and helplessness.  Boss calls this “frozen grief” and highlights the pain behind “leaving without goodbye” (as in the case of missing persons) and “goodbye without leaving” (as in the case of losing someone to a condition like dementia). [1]

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來源：

[1] https://www.goodtherapy.org/blog/the-complex-grief-of-ambiguous-loss-losing-someone-who-is-still-present/

[2] https://georgetownpsychology.com/what-is-ambiguous-loss/