The equation of the curve of which the square of the ordinate is twice the rectangle contained by the abscissa and the intercept of the normal on X-axis and passing through (2, 1), is

• A. \(\rm x^2+y^2-x=0\)
• B. \(\rm 4x^2+2y^2-9y=0\)
• C. \(\rm 2x^2+4y^2-9x=0\)
• D. \(\rm 4x^2+2y^2-9x=0\)