For which pair of functions is open paren f circ g close paren times x is equal to 12 x ?
A
f of x is equal to 4 x and g of x is equal to 3 xB
f of x is equal to square root of x and g of x is equal to 144 xC
f of x is equal to 3 minus 4 x and g of x is equal to 16 x minus 3D
f of x is equal to 6 x squared and g of x is equal to 2 over x