Final answer:
The most comforting euphemism for the word death would be passed away.
Step-by-step explanation:
Out of the given options, the most comforting euphemism for the word death would be passed away. This phrase is often used to indicate that someone has died in a more gentle and sensitive manner. It is commonly used to show empathy and offer condolences to the grieving relatives.
Learn more about euphemisms for death