The coordinates of the foot of the perpendicular drawn from the point A(1,0,3) to the join of the points B(4,7,1) and C(3,5,3) are:
a. (5/3,− 7/3,17/3)
b. (5,7,17)
c. (− 5/3,7/3,− 17/3)
d. (5/3,7/3, 17/3)