An organic compound ‘A’ (C₉H₁₀O) when treated with conc. HI undergoes cleavage to yield compounds ‘B’ and ‘C’. ‘B’ gives yellow precipitate with AgNO₃ where as ‘C’ tautomerizes to ‘D’. ‘D’ gives positive iodoform test. ‘A’ could be

The major product of the following reaction is :

The major aromatic product C in the following reaction sequence will be :

Among the compounds A and B with molecular formula C₉H₁₈O₃ , A is having higher boiling point the B. The possible structures of A and B are :