148. When analyzing trend analysis data in reference to a critical value to avoid a catastrophic failure, what statement is true?

The current data should be compared to the critical value without any concern for the historical trend or for the rate of change over time.
The current data should be analyzed for the historical trend and for the rate of change over time, but without any concern for the critical value.
The current data should be compared to the critical value and analyzed for the historical trend and for the rate of change over time.
The current data should be compared to the critical value and the historical trend, but without any concern for the rate of change over time.

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