The tests performed on compound X and their inferences are :
`{:(" Test"," Inference"),("(a) 2, 4 - DNP test","Coloured precipitate"),("(b) Iodoform test","Yellow precipitate"),("(c) Azo-dye test","No dye formation"):}`
Compound 'X' is :

Options

A.
B.
C.
D.