Which of the following cannot be explained by Lamarckism?

  • A
    Absence of limbs in snakes
  • B
    Long neck of giraffe
  • C
    Degeneration of visual apparatus in cave dwellers
  • D
    Dull progeny of Nobel laureate

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Column $I$Column $II$
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$B$. Geographical isolation$II$. Mule
$C$. Hybrid sterility$III$. Cichlid fishes in Lake Victoria
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The splint bone of the present-day horse is a vestige of which digit?

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