What are the resonance structures and shape of $N_2O$?

• A
  Linear,$N \equiv N^+-O^-$ and $N^-=N^+=O$
• B
  Bent,$N \equiv N^+-O^-$ and $N^-=N^+=O$
• C
  Linear,$N=N=O$ and $N-N \equiv O$
• D
  Bent,$N=N=O$ and $N-N \equiv O$