Given below are two statements:
Statement I: In Lassaigne's test, the covalent organic molecules are transformed into ionic compounds.
Statement II: The sodium fusion extract of an organic compound having N and S gives prussian blue colour with $\text{FeS}{{\text{O}}_{4}}$ and $\text{N}{{\text{a}}_{4}}\left[ {\text{Fe}{{{(\text{CN})}}_{6}}} \right]$ In the light of the above statements, choose the correct answer from the options given below