A body is launched horizontally. It drops through a vertical distance $y$ and covers a horizontal distance $x$ before reaching the ground. Another body is launched horizontally with the same initial velocity and falls a vertical distance $4y$ before it lands on the ground. Assuming air resistance is negligible, what horizontal distance does the second body cover?
- A$x$
- B$2x$
- C$4x$
- D$16x$