L is the foot of the perpendicular drawn from a point P (3, 4, 5) on the xy-plane. The coordinates of point L are
A. (3, 0, 0)
B. (0, 4, 5)
C. (3, 0, 5)
D. none of these
The answer is the option (d) none of these
On xy-plane, z = 0.
Thus, coordinates of L are (3,4,0).