A cubical crystal is such that the comers atoms are occupied by P atoms, face centers are occupied by Q atoms, alternate tetrahedral voids are occupied by R atoms and edge centers are occupied by S atoms Based on this info identify the correct option.

If all the atoms lying on one of the body diagonal are missing, then formula should be $P{Q}_4{R}_{8/3}{S}_4$

If all the atoms lying on a line passing through body center and connecting opposite face centers are missing, then formula will be $P{Q}_2{R}_4{S}_3$

If all the atoms lying on a line passing connecting edge centers are missing, then formula should be $P_2{Q}_5{R}_8{S}_5$

If there are no defects in the crystal. then the formula should be $P{Q}_3{R}_4{S}_3$