The total number of $\alpha$ and $\beta$ particles emitted in the nuclear reaction ${ }_{92}^{238} \mathrm{U} \rightarrow{ }_{82}^{214} \mathrm{~Pb}$ is

  • [IIT 2009]
  • A

    $1$

  • B

    $8$

  • C

    $5$

  • D

    $2$

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