Which of the following functions is neither symmetric about the y-axis nor has order 2 rotational symmetry about the origin? A. f(x)=6x2−x f ( x ) = 6 x 2 − x B. f(x)=4x5+3x3−2 f ( x ) = 4 x 5 + 3 x 3 − 2 C. f(x)=−x3+3x f ( x ) = − x 3 + 3 x D. f(x)=x