The figure below shows three white dwarfs on an HR diagram.Which of these three is oldest? 
Definitions:
Exception Report
A report generated by a management information system that shows conditions that are unusual or that need attention by system users.
Time-variant Data
Information that changes over time, requiring time-specific handling or analysis.
Critical Business Decisions
Important decisions made by business leaders that significantly affect a company's direction, operations, or financial health.
Analyze Data
The process of examining, cleaning, transforming, and modeling data with the goal of discovering useful information, informing conclusions, and supporting decision-making.
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