According to $\text{MO}$ theory which of the following lists ranks the nitrogen species in terms of increasing bond order?

1. A
   ${\text{N}}_2^{2-}<{\text{N}}_2^{-}<{\text{N}}_2$
2. B
   ${\text{N}}_2<{\text{N}}_2^{2-}<{\text{N}}_2^{-}$
3. C
   ${\text{N}}_2^{-}<{\text{N}}_2^{2-}<{\text{N}}_2$
4. D
   ${\text{N}}_2^{-}<{\text{N}}_2<{\text{N}}_2^{2-}$