in this problem we consider the behavior of a spherical void in which there is n

in this problem we consider the behavior of a spherical void in which there is no matter whose radius is much smaller than the Hubble distance rA) A flat background universe containing only matter.B) A flat background universe containing only a cosmological constant.C) a curved background universe containing only matter with omega(m0) = 0.25D) a flat background universe containing only matter and a cosmological constant with omega(m0)=0.25 and omega(lambda0)=0.75.Hint: the void and the background share the same big bang and therefore have the same age t naught