If $1 + {x^4} + {x^5} = \sum\limits_{i = 0}^5 {{a_i}\,(1 + {x})^i,} $ for all $x$ in $R,$ then $a_2$ is

  • [JEE MAIN 2014]
  • A

    $-4$

  • B

    $6$

  • C

    $-8$

  • D

    $10$

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