The correct statement regarding the following physical properties is

Bond order follows  ${\mathrm{Si}}_2<{\mathrm{C}}_2<{\mathrm{B}}_2<{\mathrm{N}}_2$  order

 Melting point follows ${\mathrm{NH}}_3<{\mathrm{PH}}_3<{\mathrm{AsH}}_3<Sb{H}_3$  order.

Pauling electro negativity follows   $Al<Si<S<P$  order

First Ionization energy follows  $Li<B<Be<C$ order.