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Assertion (A): Historical weight regressions should not be applied to an unconventional configuration.

Reason (R): The regressions describe the aircraft that were built, not those that could be.

Select the correct answer from the options below.

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

Answer: D

Both are true and the second explains the first. A blended wing body sits outside the sample entirely, so the correlation extrapolates into territory it says nothing about and must be replaced by physics-based estimation.

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