Survive was there main goal
I believe the answer is: <span>spontaneous recovery
</span><span>spontaneous recovery refers to the automatic response that we give in a certain situation which created from past conditioning.
In most cases, spontaneous recovery happened after we suddenly re-exposed to a certain stimulus that trigger a huge biological or psychological response in the past</span>
Answer:
b. The researcher has not ruled out the possibility that Y might cause X
Explanation:
In the given system, there is a theory that shows the relationship between the variables 'X' and 'Y'. The variable 'X' shows life satisfaction in a given population while the variable 'Y' shows how stable a democratic institution is. Therefore, the occurrence of the variable 'Y' can lead to the occurrence of the variable 'X'.