The structure of $PCl_{5}$ in the solid state is

• A
  square pyramidal
• B
  tetrahedral $[PCl_{4}]^{+}$ and octahedral $[PCl_{6}]^{-}$
• C
  square planar $[PCl_{4}]^{+}$ and octahedral $[PCl_{6}]^{-}$
• D
  trigonal bipyramidal