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

  • A
    $[E^{-1} d^{-2} P^2]$
  • B
    $[E^{-2} d^{-1} P^2]$
  • C
    $[E^2 d^{-1} P^{-1}]$
  • D
    $[E^{-1} d^{-2} P^{-2}]$

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