In fact, none of them, but nitrous oxide (laughing gas).
In industry, the method of heating ammonium nitrate is used to produce N2O, but be careful that the temperature is not too high, otherwise it will lead to explosion.
NH4NO3==250C°==N2O+2H2O
In addition, can be heated of sodium nitrate and ammonium sulfate, or urea, sulfuric acid and nitric acid can react.
If the catalyst in Oswald process is changed from platinum to manganese dioxide + bismuth trioxide, nitrous oxide will be generated instead of nitric oxide.
There is nitrous oxide in the recipe of gt5u’s octane-boosted gasoline, which is directly formed by the reaction of nitrogen and oxygen. I’m not sure whether this is feasible in reality.