According to the Rational Root Theorem, which statement about f of x is equal to 12 x cubed minus 5 x squared plus 6 x plus 9 is true?
A
Any rational root of f of x is a factor of 12 divided by a factor of 9 .B
Any rational root of f of x is a factor of 9 divided by a factor of 12 .C
Any rational root of f of x is a multiple of 9 divided by a multiple of 12 .D
Any rational root of f of x is a multiple of 12 divided by a multiple of 9 .