# The froth stabilizers, generally used during froth-floatation

$(a)\;\text {Cresol and amine.} \\(b)\;\text{Amine and phenol} \\(c)\;\text{Alcohol and Amide} \\ (d)\;\text{Cresol and Aniline}$

Cresol and aniline stabilize the froth before it is taken out for further treatment.
Hence d is the correct answer.