Answer:
C. Conflict perspective
Explanation:
The conflict perspective sees society as the result of the fighting between two or more conflicting groups, over scarce resources.
The conflict perspective would be the most helpful to understand the new beliefs of the older couples, because they, as a particular demographic group: older people, are being attacked for their resources, and feel threatened, by another particular demographic group: young people.
In simple words, young people and older people are in conflict, as the conflict perspective would expect, and explain.
