An electric dipole is situated in an electric field of uniform intensity `E` whose dipole moment is `p` and moment of inertia is `I`. If the dipole is displaced slightly from the equilibrium position, then the angular frequency of its oscilliations is

A. `((pE)/(I))^(1/2)`

B. `((pE)/(I))^(3/2)`

C. `((I)/(pE))^(1/2)`

D. `((p)/(IE))^(1/2)`