In the following sequence of reactions,


The compounds B and C respectively are :-

Given below are two statements :

Statement I : The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a ketone involves proton transfer to form a stable ion.

Statement II : The nucleophilic addition of hydrogen cyanide to an aldehyde or a ketone yields amine as final product.

In the light of the above statements, choose the most appropriate answer from the options given below :

Which one of the following gives the most stable Diazonium salt?

The potassium ferrocyanide solution gives a Prussian blue colour, when added to :