Answer :

[tex]12xy^5=12xy^2\cdot y^3\\60x^4y^2=12xy^2\cdot5x^3\\24x^3y^3=12xy^2\cdot2y\\\\therefore\\\\12xy^5+69x^4y^2-24x^3y^3=12xy^2(y^3+5x^3-2y)\\\\Answer:\boxed{D.\ 12xy^2}[/tex]

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