For the reaction $3\,{A_{\,(g)\,}}\,\xrightarrow{K}\,{B_{(g)}}\, + \,\,{C_{(g)\,,}}K$ is ${10^{ - 14}}\,L/mol.\min .$ if $(A) = 0.5\,M$ then the value of $ - \frac{{d(A)}}{{dt}}$ (in $M / sec$ ) is.

  • A

    $7.5\times 10^{-5}$

  • B

    $3\times 10^{-4}$

  • C

    $2.5\times 10^{-5}$

  • D

    None of these

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