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Assertion (A): A recipe returned by the software should still be dyed as a laboratory trial before bulk production.
Reason (R): The predicted reflectance rests on a calibration database that the current batch of substrate and auxiliaries may not match.

  • A.A is false but R is true
  • B.Both A and R are true, and R is the correct explanation of A
  • C.Both A and R are true, but R is not the correct explanation of A
  • D.A is true but R is false

Answer: B

Both are true and the reason gives the mechanism, and the trial is the cheapest place to discover the discrepancy. Prediction is only as good as the database behind it, and dye lot strength, substrate absorbency and liquor ratio all drift over time. A small laboratory dyeing costs very little; a rejected bulk lot costs a great deal.

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