In a new system of units energy $(E)$, density $(d)$ and power $(P)$ are taken as fundamental units, then the dimensional formula of universal gravitational constant $G$ will be .......

  • A

    $\left[E^{-1} d^{-2} P^2\right]$

  • B

    $\left[E^{-2} d^{-1} P^2\right]$

  • C

    $\left[E^2 d^{-1} P^{-1}\right]$

  • D

    $\left[E^{-1} d^{-2} P^{-2}\right]$

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