In a geometric progression, if the ratio of the sum of first $5$ terms to the sum of their reciprocals is $49$, and the sum of the first and the third term is $35$ . Then the first term of this geometric progression is

  • [JEE MAIN 2014]
  • A

    $7$

  • B

    $21$

  • C

    $28$

  • D

    $42$

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