I would say C. The passage is talking about death and C is the only one that mentions death.
The answer you are looking for is A, member. The other 3 all have to do with being mindful! While a member just refers to a person. Not to mention there is no "or" in member!
Hope this helps!
Flashback, to give the reader backround information
(Apex)
Answer: Slaves sing most when they are most unhappy. The songs of the slave represent the sorrows of his heart; and he is relieved by them, only as an aching heart is relieved by its tears.
Explanation: hope this helps :)