$\binom{10}{1} + \binom{10}{2} + \binom{11}{3} + \binom{12}{4} + \binom{13}{5} = \dots$

  • A
    $\binom{14}{6}$
  • B
    $\binom{13}{7}$
  • C
    $\binom{13}{6}$
  • D
    $\binom{14}{5}$

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