Use reasoning to lead to the answer of the following question:
When all the members drank the poison and died it was because everybody what?
Options:
- exist
- cat
- out of mind
- believed
- happy
 Reasoning process:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Everybody believed that all the members drank the poison and died. Therefore, the final answer is believed.