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0, 7, 26, 63, 124,…

  • A.251
  • B.125
  • C.215
  • D.512

Answer: D

Correct answer: 215

Each term is one less than a cube: \( 1^3-1=0 \), \( 2^3-1=7 \), \( 3^3-1=26 \), \( 4^3-1=63 \), \( 5^3-1=124 \), so the next is \( 6^3-1 = \mathbf{215} \).

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