84. Which life-benefit indicator is active?
Answer: C
OC is the active life-benefit indicator.
OC is identified as the active life-benefit indicator, which signifies its role in effectively measuring or demonstrating specific beneficial aspects of life.
A) OA
OA is not the active life-benefit indicator as it does not fulfill the criteria needed to represent active benefits. Its function may pertain to a different aspect of life or benefits that are not directly measurable as 'active'.
B) OB
OB is incorrect because it lacks the characteristics that define an active life-benefit indicator. This option might focus on passive benefits or other indicators that do not engage with the concept of activity.
C) OC
OC is the correct choice because it represents an active aspect of life-benefit indicators, indicating its relevance and applicability in measuring dynamic benefits in a person's life.
D) OD
OD is not the active life-benefit indicator, possibly representing static or non-active benefits that do not contribute to an active assessment of life quality.
Conclusion
OC stands out as the definitive active life-benefit indicator due to its ability to effectively measure dynamic aspects of life benefits. In contrast, options OA, OB, and OD fail to meet the necessary criteria for active indicators, making them unsuitable choices. Thus, OC is clearly the most appropriate answer.