The locus of the ortho-center of the triangle formed by the lines (1 + p)x - py + p(1 + p) = 0, (1 + q)x - qy + q(1 + q) = 0 and y = 0, where p ≠ q, is:

• A. A hyperbola.
• B. A parabola.
• C. An ellipse.
• D. A straight line.